Calculator: Fix on percentages with 4+ decimal places (#4541) (#4558)

Author: prattheev

share/goodie/calculator/calculator.js

@@ -88,9 +88,9 @@ DDH.calculator = DDH.calculator || {};
 
         var expression = expression
             // 1. handles +/- percentages
-            .replace(/(\+) (\d+(\.\d{1,2})?)%/g, PercentageNormalizer.addPercentage)
-            .replace(/(\d+(\.\d{1,2})?) - (\d+(\.\d{1,2})?)%/g, PercentageNormalizer.subtractPercentage)
-            .replace(/(\d+(\.\d{1,2})?)%/g, PercentageNormalizer.soloPercentage)
+            .replace(/(\+) (\d+(\.\d{1,})?)%/g, PercentageNormalizer.addPercentage)
+            .replace(/(\d+(\.\d{1,})?) - (\d+(\.\d{1,})?)%/g, PercentageNormalizer.subtractPercentage)
+            .replace(/(\d+(\.\d{1,})?)%/g, PercentageNormalizer.soloPercentage)
 
             // 2. handles basic arithmetic
             .replace(/×/g, '*')