diff --git a/apps/web/process/elt/lib/response.ts b/apps/web/process/elt/lib/response.ts
index 42d4f75..517f252 100644
--- a/apps/web/process/elt/lib/response.ts
+++ b/apps/web/process/elt/lib/response.ts
@@ -61,7 +61,7 @@ export async function convertEltOsagoResponse(input: ConvertEltOsagoResponseInpu
 
       // "скидка за счет КВ"
       case 100_000_002: {
-        sum = (((sum / cost) * 100 - rule_evo_discount) / 100) * cost;
+        sum = (sum * (100 - rule_evo_discount)) / 100;
         numCalc = Number.parseInt(defaultRow.numCalc, 2);
         skCalcId = defaultRow.skCalcId;
         if (selectedRule.evo_message) message = selectedRule.evo_message;
@@ -220,7 +220,7 @@ export async function convertEltKaskoResponse(input: ConvertEltKaskoResponseInpu
 
       // "скидка за счет КВ"
       case 100_000_002: {
-        sum = (((sum / cost) * 100 - rule_evo_discount) / 100) * cost;
+        sum = (sum * (100 - rule_evo_discount)) / 100;
         requestId = defaultRow.requestId;
         skCalcId = defaultRow.skCalcId;
         if (selectedRule.evo_message) message = selectedRule.evo_message;