diff --git a/lib/score.js b/lib/score.js
index f5b3963..e883e69 100644
--- a/lib/score.js
+++ b/lib/score.js
@@ -50,5 +50,5 @@ for (const charName in equipScore) {
 export const getEquipPropertyEnhanceCount = (propertyID, value) => {
   const baseValue = baseValueData[propertyID];
   value = +value.replace('%', '');
-  return value / baseValue - 1 || 0;
+  return Math.trunc(value / baseValue - 1 || 0);
 };