diff --git a/apps/web/process/bonuses/reactions/common.ts b/apps/web/process/bonuses/reactions/common.ts
index 0d0da52..ba9aacd 100644
--- a/apps/web/process/bonuses/reactions/common.ts
+++ b/apps/web/process/bonuses/reactions/common.ts
@@ -5,6 +5,7 @@ import { disposableReaction } from '@/utils/mobx';
 import dayjs from 'dayjs';
 import utc from 'dayjs/plugin/utc';
 import { reaction } from 'mobx';
+import { round } from 'tools';
 
 dayjs.extend(utc);
 
@@ -83,7 +84,9 @@ export default function reactions(context: ProcessContext) {
         const coefficient = await getCoefficient(productId);
         const maxBonus = (coefficient?.evo_sot_coefficient || 0) * 100;
 
-        $calculation.element('tbxBonusCoefficient').setValue(maxBonus ? saleBonus / maxBonus : 0);
+        $calculation
+          .element('tbxBonusCoefficient')
+          .setValue(maxBonus ? round(saleBonus / maxBonus, 4) : 0);
       } else {
         $calculation.element('tbxBonusCoefficient').resetValue();
       }