diff --git a/features/maximum_coverage_drop.feature b/features/maximum_coverage_drop.feature
index 84a91438..452bd9c9 100644
--- a/features/maximum_coverage_drop.feature
+++ b/features/maximum_coverage_drop.feature
@@ -10,7 +10,7 @@ Feature:
       require 'simplecov'
       SimpleCov.start do
         add_filter 'test.rb'
-        maximum_coverage_drop 2
+        maximum_coverage_drop 3.14
       end
       """
 
@@ -31,6 +31,6 @@ Feature:
 
     When I run `bundle exec rake test`
     Then the exit status should not be 0
-    And the output should contain "Coverage has dropped by 3.31% since the last time (maximum allowed: 2.00%)."
+    And the output should contain "Coverage has dropped by 3.32% since the last time (maximum allowed: 3.14%)."
     And a file named "coverage/.last_run.json" should exist
 
diff --git a/features/minimum_coverage.feature b/features/minimum_coverage.feature
index 23f4db40..1f8dd1c8 100644
--- a/features/minimum_coverage.feature
+++ b/features/minimum_coverage.feature
@@ -18,6 +18,33 @@ Feature:
     Then the exit status should not be 0
     And the output should contain "Coverage (88.10%) is below the expected minimum coverage (90.00%)."
 
+  Scenario:
+    Given SimpleCov for Test/Unit is configured with:
+      """
+      require 'simplecov'
+      SimpleCov.start do
+        add_filter 'test.rb'
+        minimum_coverage 88.11
+      end
+      """
+
+    When I run `bundle exec rake test`
+    Then the exit status should not be 0
+    And the output should contain "Coverage (88.10%) is below the expected minimum coverage (88.11%)."
+
+  Scenario:
+    Given SimpleCov for Test/Unit is configured with:
+      """
+      require 'simplecov'
+      SimpleCov.start do
+        add_filter 'test.rb'
+        minimum_coverage 88.10
+      end
+      """
+
+    When I run `bundle exec rake test`
+    Then the exit status should be 0
+
   Scenario:
     Given SimpleCov for Test/Unit is configured with:
       """
diff --git a/lib/simplecov/configuration.rb b/lib/simplecov/configuration.rb
index 56eac789..c7593a37 100644
--- a/lib/simplecov/configuration.rb
+++ b/lib/simplecov/configuration.rb
@@ -176,8 +176,7 @@ def merge_timeout(seconds=nil)
   # Default is 0% (disabled)
   #
   def minimum_coverage(coverage=nil)
-    @minimum_coverage = coverage if coverage.kind_of?(Fixnum)
-    @minimum_coverage ||= 0
+    @minimum_coverage ||= (coverage || 0).to_f.round(2)
   end
 
   #
@@ -187,8 +186,7 @@ def minimum_coverage(coverage=nil)
   # Default is 100% (disabled)
   #
   def maximum_coverage_drop(coverage_drop=nil)
-    @maximum_coverage_drop = coverage_drop if coverage_drop.kind_of?(Fixnum)
-    @maximum_coverage_drop ||= 100
+    @maximum_coverage_drop ||= (coverage_drop || 100).to_f.round(2)
   end
 
   #
diff --git a/lib/simplecov/defaults.rb b/lib/simplecov/defaults.rb
index 234b44d9..3ad9b34c 100644
--- a/lib/simplecov/defaults.rb
+++ b/lib/simplecov/defaults.rb
@@ -52,15 +52,17 @@
   SimpleCov.at_exit.call
 
   if SimpleCov.result? # Result has been computed
+    covered_percent = SimpleCov.result.covered_percent.round(2)
+
     if @exit_status.to_i == 0 # No other errors
-      @exit_status = if SimpleCov.result.covered_percent < SimpleCov.minimum_coverage
+      @exit_status = if covered_percent < SimpleCov.minimum_coverage
         $stderr.puts "Coverage (%.2f%%) is below the expected minimum coverage (%.2f%%)." % \
-                     [SimpleCov.result.covered_percent, SimpleCov.minimum_coverage]
+                     [covered_percent, SimpleCov.minimum_coverage]
 
         SimpleCov::ExitCodes::MINIMUM_COVERAGE
 
       elsif (last_run = SimpleCov::LastRun.read)
-        diff = last_run['result']['covered_percent'] - SimpleCov.result.covered_percent
+        diff = last_run['result']['covered_percent'] - covered_percent
         if diff > SimpleCov.maximum_coverage_drop
           $stderr.puts "Coverage has dropped by %.2f%% since the last time (maximum allowed: %.2f%%)." % \
                        [diff, SimpleCov.maximum_coverage_drop]
@@ -71,7 +73,7 @@
     end
 
     metrics = {
-      :result => { :covered_percent => SimpleCov.result.covered_percent }
+      :result => { :covered_percent => covered_percent }
     }
     SimpleCov::LastRun.write(metrics)
   end