From 3ebadbcda9e3b733b702d585cefb11963ac16c01 Mon Sep 17 00:00:00 2001
From: Maxime Beauchemin <maximebeauchemin@gmail.com>
Date: Wed, 11 Oct 2017 21:14:39 -0700
Subject: [PATCH] Fix #3612 - reverse sign in difference calculation (#3646)

---
 superset/assets/visualizations/time_table.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/superset/assets/visualizations/time_table.jsx b/superset/assets/visualizations/time_table.jsx
index c8f10e9b7c322..f318b00f25ac0 100644
--- a/superset/assets/visualizations/time_table.jsx
+++ b/superset/assets/visualizations/time_table.jsx
@@ -109,7 +109,7 @@ function viz(slice, payload) {
           // Time lag ratio
           v = reversedData[parseInt(c.timeLag, 10)][metric];
           if (c.comparisonType === 'diff') {
-            v -= recent;
+            v = recent - v;
           } else if (c.comparisonType === 'perc') {
             v = recent / v;
           } else if (c.comparisonType === 'perc_change') {