diff --git a/frontend/__tests__/containers/ReportStep/ChartAndTitleWrapper.test.tsx b/frontend/__tests__/containers/ReportStep/ChartAndTitleWrapper.test.tsx
index 1f890ec26..40d3c3741 100644
--- a/frontend/__tests__/containers/ReportStep/ChartAndTitleWrapper.test.tsx
+++ b/frontend/__tests__/containers/ReportStep/ChartAndTitleWrapper.test.tsx
@@ -1,13 +1,13 @@
 import ChartAndTitleWrapper from '@src/containers/ReportStep/ChartAndTitleWrapper';
-import { CHART_TYPE, TREND_ICON } from '@src/constants/resources';
+import { CHART_TYPE, TREND_ICON, TREND_TYPE } from '@src/constants/resources';
 import { render, screen } from '@testing-library/react';
 
 describe('ChartAndTitleWrapper', () => {
-  it('should render green up icon when icon is set to up and green', () => {
+  it('should render green up icon given icon is set to up and better', () => {
     const testedTrendInfo = {
-      color: 'green',
+      trendType: TREND_TYPE.BETTER,
       icon: TREND_ICON.UP,
-      trendNumber: 83.72,
+      trendNumber: 0.83,
       type: CHART_TYPE.VELOCITY,
     };
     render(<ChartAndTitleWrapper trendInfo={testedTrendInfo} />);
@@ -17,11 +17,11 @@ describe('ChartAndTitleWrapper', () => {
     expect(icon.parentElement?.parentElement).toHaveStyle({ color: 'green' });
   });
 
-  it('should render down icon when icon is set to down', () => {
+  it('should render down icon given icon is set to down and worse', () => {
     const testedTrendInfo = {
-      color: 'red',
+      trendType: TREND_TYPE.WORSE,
       icon: TREND_ICON.DOWN,
-      trendNumber: -83.72,
+      trendNumber: -0.83,
       type: CHART_TYPE.VELOCITY,
     };
     render(<ChartAndTitleWrapper trendInfo={testedTrendInfo} />);
@@ -30,4 +30,16 @@ describe('ChartAndTitleWrapper', () => {
     expect(screen.getByTestId('TrendingDownSharpIcon')).toBeInTheDocument();
     expect(icon.parentElement?.parentElement).toHaveStyle({ color: 'red' });
   });
+
+  it('should show positive trend number even if the tend number is negative', () => {
+    const testedTrendInfo = {
+      trendType: TREND_TYPE.WORSE,
+      icon: TREND_ICON.DOWN,
+      trendNumber: -0.8372,
+      type: CHART_TYPE.VELOCITY,
+    };
+    render(<ChartAndTitleWrapper trendInfo={testedTrendInfo} />);
+
+    expect(screen.getByLabelText('trend number')).toHaveTextContent('83.72%');
+  });
 });
diff --git a/frontend/__tests__/containers/ReportStep/style.test.tsx b/frontend/__tests__/containers/ReportStep/style.test.tsx
index 27ef282be..508449156 100644
--- a/frontend/__tests__/containers/ReportStep/style.test.tsx
+++ b/frontend/__tests__/containers/ReportStep/style.test.tsx
@@ -1,5 +1,7 @@
+import { TrendTypeIcon } from '@src/containers/ReportStep/ChartAndTitleWrapper/style';
 import { StyledCalendarWrapper } from '@src/containers/ReportStep/style';
 import { render, screen } from '@testing-library/react';
+import ThumbUpIcon from '@mui/icons-material/ThumbUp';
 
 describe('Report step styled components', () => {
   it('should render the bottom margin depend on whether StyledCalendarWrapper in summary page', () => {
@@ -22,3 +24,15 @@ describe('Report step styled components', () => {
     expect(component2).toHaveStyle({ 'margin-bottom': '2rem' });
   });
 });
+
+describe('ChartAndTitleWrapper styled component', () => {
+  it('should render the TrendTypeIcon with the given color', () => {
+    render(
+      <TrendTypeIcon aria-label='test component 1' color='red'>
+        <ThumbUpIcon />
+      </TrendTypeIcon>,
+    );
+    console.log(screen.getByLabelText('test component 1'));
+    expect(screen.getByLabelText('test component 1').children[0]).toHaveStyle({ color: 'red' });
+  });
+});
diff --git a/frontend/__tests__/utils/Util.test.tsx b/frontend/__tests__/utils/Util.test.tsx
index 208cf9e40..3e4eaf1dd 100644
--- a/frontend/__tests__/utils/Util.test.tsx
+++ b/frontend/__tests__/utils/Util.test.tsx
@@ -25,6 +25,7 @@ import {
   DOWN_TREND_IS_BETTER,
   METRICS_CONSTANTS,
   TREND_ICON,
+  TREND_TYPE,
   UP_TREND_IS_BETTER,
 } from '@src/constants/resources';
 import { CleanedBuildKiteEmoji, OriginBuildKiteEmoji } from '@src/constants/emojis/emoji';
@@ -639,7 +640,7 @@ describe('calculateTrendInfo function', () => {
 
     expect(result.dateRangeList).toEqual(undefined);
     expect(result.trendNumber).toEqual(undefined);
-    expect(result.color).toEqual(undefined);
+    expect(result.trendType).toEqual(undefined);
     expect(result.icon).toEqual(undefined);
     expect(result.type).toEqual(CHART_TYPE.VELOCITY);
   });
@@ -652,7 +653,7 @@ describe('calculateTrendInfo function', () => {
 
       expect(result.dateRangeList).toEqual(['2024/01/22-2024/01/23', '2024/01/15-2024/01/19']);
       expect(result.trendNumber).toEqual(2);
-      expect(result.color).toEqual('green');
+      expect(result.trendType).toEqual(TREND_TYPE.BETTER);
       expect(result.icon).toEqual(TREND_ICON.UP);
       expect(result.type).toEqual(type);
     },
@@ -667,7 +668,7 @@ describe('calculateTrendInfo function', () => {
 
       expect(result.dateRangeList).toEqual(['2024/01/22-2024/01/23', '2024/01/15-2024/01/19']);
       expect(Number(result.trendNumber?.toFixed(2))).toEqual(-0.67);
-      expect(result.color).toEqual('red');
+      expect(result.trendType).toEqual(TREND_TYPE.WORSE);
       expect(result.icon).toEqual(TREND_ICON.DOWN);
       expect(result.type).toEqual(type);
     },
@@ -682,7 +683,7 @@ describe('calculateTrendInfo function', () => {
 
       expect(result.dateRangeList).toEqual(['2024/01/22-2024/01/23', '2024/01/15-2024/01/19']);
       expect(Number(result.trendNumber?.toFixed(2))).toEqual(-0.67);
-      expect(result.color).toEqual('green');
+      expect(result.trendType).toEqual(TREND_TYPE.BETTER);
       expect(result.icon).toEqual(TREND_ICON.DOWN);
       expect(result.type).toEqual(type);
     },
@@ -697,7 +698,7 @@ describe('calculateTrendInfo function', () => {
 
       expect(result.dateRangeList).toEqual(['2024/01/22-2024/01/23', '2024/01/15-2024/01/19']);
       expect(result.trendNumber).toEqual(2);
-      expect(result.color).toEqual('red');
+      expect(result.trendType).toEqual(TREND_TYPE.WORSE);
       expect(result.icon).toEqual(TREND_ICON.UP);
       expect(result.type).toEqual(type);
     },
diff --git a/frontend/src/constants/resources.ts b/frontend/src/constants/resources.ts
index b39dc6f79..f0f0517df 100644
--- a/frontend/src/constants/resources.ts
+++ b/frontend/src/constants/resources.ts
@@ -101,6 +101,11 @@ export enum TREND_ICON {
   DOWN = 'DOWN',
 }
 
+export enum TREND_TYPE {
+  BETTER = 'BETTER',
+  WORSE = 'WORSE',
+}
+
 export const CHART_TREND_TIP = {
   [CHART_TYPE.VELOCITY]: 'Velocity(Story point)',
   [CHART_TYPE.AVERAGE_CYCLE_TIME]: 'Days/Story point',
diff --git a/frontend/src/containers/ReportStep/BoardMetricsChart/index.tsx b/frontend/src/containers/ReportStep/BoardMetricsChart/index.tsx
index cfabbe3ab..54aa85fcb 100644
--- a/frontend/src/containers/ReportStep/BoardMetricsChart/index.tsx
+++ b/frontend/src/containers/ReportStep/BoardMetricsChart/index.tsx
@@ -2,8 +2,8 @@ import {
   stackedAreaOptionMapper,
   stackedBarOptionMapper,
 } from '@src/containers/ReportStep/BoardMetricsChart/ChartOption';
+import { CHART_TYPE, CYCLE_TIME_CHARTS_MAPPING, METRICS_CONSTANTS } from '@src/constants/resources';
 import ChartAndTitleWrapper from '@src/containers/ReportStep/ChartAndTitleWrapper';
-import { CHART_TYPE, CYCLE_TIME_CHARTS_MAPPING } from '@src/constants/resources';
 import { calculateTrendInfo, xAxisLabelDateFormatter } from '@src/utils/util';
 import { ReportResponse, Swimlane } from '@src/clients/report/dto/response';
 import { ChartContainer } from '@src/containers/MetricsStep/style';
@@ -159,7 +159,11 @@ function extractCycleTimeData(dateRanges: string[], mappedData?: ReportResponse[
   for (const [name, data] of Object.entries(cycleTimeByStatus)) {
     indicators.push({ data, name: CYCLE_TIME_CHARTS_MAPPING[name], type: 'bar' });
   }
-  const trendInfo = calculateTrendInfo(totalCycleTime, dateRanges, CHART_TYPE.CYCLE_TIME_ALLOCATION);
+  const developmentPercentageList = indicators.find(
+    ({ name }) => name === CYCLE_TIME_CHARTS_MAPPING[METRICS_CONSTANTS.inDevValue],
+  )?.data;
+  const trendInfo = calculateTrendInfo(developmentPercentageList, dateRanges, CHART_TYPE.CYCLE_TIME_ALLOCATION);
+
   return {
     xAxis: dateRanges,
     yAxis: {
diff --git a/frontend/src/containers/ReportStep/ChartAndTitleWrapper/index.tsx b/frontend/src/containers/ReportStep/ChartAndTitleWrapper/index.tsx
index f9117b8ee..6381dfce7 100644
--- a/frontend/src/containers/ReportStep/ChartAndTitleWrapper/index.tsx
+++ b/frontend/src/containers/ReportStep/ChartAndTitleWrapper/index.tsx
@@ -1,23 +1,28 @@
 import {
   ChartTitle,
-  StyledToolTipContent,
+  StyledTooltipContent,
+  StyledTooltipWrapper,
   TrendContainer,
   TrendIcon,
+  TrendTypeIcon,
 } from '@src/containers/ReportStep/ChartAndTitleWrapper/style';
-import { CHART_TREND_TIP, CHART_TYPE, TREND_ICON, UP_TREND_IS_BETTER } from '@src/constants/resources';
+import { CHART_TREND_TIP, CHART_TYPE, TREND_ICON, TREND_TYPE, UP_TREND_IS_BETTER } from '@src/constants/resources';
 import TrendingDownSharpIcon from '@mui/icons-material/TrendingDownSharp';
 import TrendingUpSharpIcon from '@mui/icons-material/TrendingUpSharp';
 import { ChartWrapper } from '@src/containers/MetricsStep/style';
+import ThumbDownIcon from '@mui/icons-material/ThumbDown';
 import { convertNumberToPercent } from '@src/utils/util';
 import React, { ForwardedRef, forwardRef } from 'react';
+import ThumbUpIcon from '@mui/icons-material/ThumbUp';
 import { Tooltip } from '@mui/material';
+import { theme } from '@src/theme';
 
 export interface ITrendInfo {
-  color?: string;
   icon?: TREND_ICON;
   trendNumber?: number;
   dateRangeList?: string[];
   type: CHART_TYPE;
+  trendType?: TREND_TYPE;
 }
 
 const TREND_ICON_MAPPING = {
@@ -25,6 +30,16 @@ const TREND_ICON_MAPPING = {
   [TREND_ICON.DOWN]: <TrendingDownSharpIcon />,
 };
 
+const TREND_TYPE_ICON_MAPPING = {
+  [TREND_TYPE.BETTER]: <ThumbUpIcon />,
+  [TREND_TYPE.WORSE]: <ThumbDownIcon />,
+};
+
+const TREND_COLOR_MAP = {
+  [TREND_TYPE.BETTER]: theme.main.chartTrend.betterColor,
+  [TREND_TYPE.WORSE]: theme.main.chartTrend.worseColor,
+};
+
 const DECREASE = 'decrease';
 const INCREASE = 'increase';
 
@@ -50,10 +65,15 @@ const ChartAndTitleWrapper = forwardRef(
       }
     };
     const tipContent = (
-      <StyledToolTipContent>
-        <p>{`The rate of ${trendDescribe()} for ${CHART_TREND_TIP[trendInfo.type]}: `}</p>
-        {trendInfo.dateRangeList?.map((dateRange) => <p key={dateRange}>{dateRange}</p>)}
-      </StyledToolTipContent>
+      <StyledTooltipWrapper>
+        <TrendTypeIcon color={TREND_COLOR_MAP[trendInfo.trendType!]}>
+          {TREND_TYPE_ICON_MAPPING[trendInfo.trendType!]}
+        </TrendTypeIcon>
+        <StyledTooltipContent>
+          <p>{`The rate of ${trendDescribe()} for ${CHART_TREND_TIP[trendInfo.type]}: `}</p>
+          {trendInfo.dateRangeList?.map((dateRange) => <p key={dateRange}>{dateRange}</p>)}
+        </StyledTooltipContent>
+      </StyledTooltipWrapper>
     );
 
     return (
@@ -62,9 +82,9 @@ const ChartAndTitleWrapper = forwardRef(
           {trendInfo.type}
           {trendInfo.trendNumber !== undefined && (
             <Tooltip title={tipContent} arrow>
-              <TrendContainer color={trendInfo.color!}>
+              <TrendContainer color={TREND_COLOR_MAP[trendInfo.trendType!]}>
                 <TrendIcon>{TREND_ICON_MAPPING[trendInfo.icon!]}</TrendIcon>
-                {convertNumberToPercent(trendInfo.trendNumber)}
+                <span aria-label='trend number'>{convertNumberToPercent(trendInfo.trendNumber)}</span>
               </TrendContainer>
             </Tooltip>
           )}
diff --git a/frontend/src/containers/ReportStep/ChartAndTitleWrapper/style.tsx b/frontend/src/containers/ReportStep/ChartAndTitleWrapper/style.tsx
index 386710fc9..faa0483aa 100644
--- a/frontend/src/containers/ReportStep/ChartAndTitleWrapper/style.tsx
+++ b/frontend/src/containers/ReportStep/ChartAndTitleWrapper/style.tsx
@@ -30,9 +30,21 @@ export const TrendContainer = styled('div')(({ color }: { color: string }) => ({
   fontSize: '1.125rem',
 }));
 
-export const StyledToolTipContent = styled('div')({
+export const StyledTooltipContent = styled('div')({
   fontSize: '0.85rem',
   display: 'flex',
   flexDirection: 'column',
   gap: '0.5rem',
 });
+
+export const StyledTooltipWrapper = styled('div')({
+  display: 'flex',
+});
+
+export const TrendTypeIcon = styled('div')(({ color }: { color: string }) => ({
+  '& svg': {
+    color: color,
+    fontSize: '1rem',
+    marginRight: '0.5rem',
+  },
+}));
diff --git a/frontend/src/utils/util.ts b/frontend/src/utils/util.ts
index 87c9e9e48..47a844400 100644
--- a/frontend/src/utils/util.ts
+++ b/frontend/src/utils/util.ts
@@ -5,6 +5,7 @@ import {
   DOWN_TREND_IS_BETTER,
   METRICS_CONSTANTS,
   TREND_ICON,
+  TREND_TYPE,
   UP_TREND_IS_BETTER,
 } from '@src/constants/resources';
 import { CleanedBuildKiteEmoji, OriginBuildKiteEmoji } from '@src/constants/emojis/emoji';
@@ -17,7 +18,6 @@ import { DateRangeList } from '@src/context/config/configSlice';
 import { BoardInfoResponse } from '@src/hooks/useGetBoardInfo';
 import { DATE_FORMAT_TEMPLATE } from '@src/constants/template';
 import duration from 'dayjs/plugin/duration';
-import { theme } from '@src/theme';
 import dayjs from 'dayjs';
 
 dayjs.extend(duration);
@@ -225,19 +225,19 @@ export const getTrendInfo = (trendNumber: number, dateRangeList: string[], type:
 
   if (UP_TREND_IS_BETTER.includes(type)) {
     if (trendNumber >= 0) {
-      result.color = theme.main.chartTrend.betterColor;
       result.icon = TREND_ICON.UP;
+      result.trendType = TREND_TYPE.BETTER;
     } else {
-      result.color = theme.main.chartTrend.worseColor;
       result.icon = TREND_ICON.DOWN;
+      result.trendType = TREND_TYPE.WORSE;
     }
   } else if (DOWN_TREND_IS_BETTER.includes(type)) {
     if (trendNumber <= 0) {
-      result.color = theme.main.chartTrend.betterColor;
       result.icon = TREND_ICON.DOWN;
+      result.trendType = TREND_TYPE.BETTER;
     } else {
-      result.color = theme.main.chartTrend.worseColor;
       result.icon = TREND_ICON.UP;
+      result.trendType = TREND_TYPE.WORSE;
     }
   }
   return result;
@@ -262,7 +262,8 @@ export const calculateTrendInfo = (
 };
 
 export const convertNumberToPercent = (num: number): string => {
-  return (num * 100).toFixed(2) + '%';
+  const positiveNumber = num >= 0 ? num : -num;
+  return (positiveNumber * 100).toFixed(2) + '%';
 };
 
 export const percentageFormatter = (showPercentage = true) => {