diff --git a/addons/web/static/src/js/views/pivot/pivot_model.js b/addons/web/static/src/js/views/pivot/pivot_model.js
index 5758b906421..b60cf81ac86 100644
--- a/addons/web/static/src/js/views/pivot/pivot_model.js
+++ b/addons/web/static/src/js/views/pivot/pivot_model.js
@@ -950,8 +950,8 @@ var PivotModel = AbstractModel.extend({
                             }
                             if (measureComparisonValue instanceof Array) {
                                 dataPoints[groupIdentifier][measureName + 'Aggregate'].comparisonData = 1;
-                                dataPoints[groupIdentifier][measureName].variation = computeVariation(
-                                    dataPoints[groupIdentifier][measureName].data,
+                                dataPoints[groupIdentifier][measureName + 'Aggregate'].variation = computeVariation(
+                                    dataPoints[groupIdentifier][measureName + 'Aggregate'].data,
                                     1
                                 );
 
diff --git a/addons/web/static/tests/views/pivot_tests.js b/addons/web/static/tests/views/pivot_tests.js
index 69c674479d1..be99c129cda 100644
--- a/addons/web/static/tests/views/pivot_tests.js
+++ b/addons/web/static/tests/views/pivot_tests.js
@@ -1639,7 +1639,7 @@ QUnit.module('Views', {
         results = [
             "2", "0", "100%", "0", "1", "-100%", "2", "1", "100%" ,
             "1", "0", "100%",                     "1", "0" , "100%"    ,
-            "1" , "0", "100%", "0", "1", "-100%", "1" , "1" , "100%"
+            "1" , "0", "100%", "0", "1", "-100%", "1" , "1" , "0%"
         ];
         checkCellValues(results);