diff --git a/src/main/java/org/gridsuite/modification/server/modifications/byfilter/ByFormulaModification.java b/src/main/java/org/gridsuite/modification/server/modifications/byfilter/ByFormulaModification.java
index d8071d983..ad35e95db 100644
--- a/src/main/java/org/gridsuite/modification/server/modifications/byfilter/ByFormulaModification.java
+++ b/src/main/java/org/gridsuite/modification/server/modifications/byfilter/ByFormulaModification.java
@@ -105,7 +105,7 @@ private Double applyOperation(Operator operator, @Nonnull Double value1, @Nonnul
             case SUBTRACTION -> value1 - value2;
             case MULTIPLICATION -> value1 * value2;
             case DIVISION -> value1 / value2;
-            case PERCENTAGE -> value1 * (value2 / 100);
+            case PERCENTAGE -> (value1 / 100) * value2;
         };
     }
 }