diff --git a/src/kitUI/Cart/Cart.tsx b/src/kitUI/Cart/Cart.tsx
index bca1eae..ef64790 100644
--- a/src/kitUI/Cart/Cart.tsx
+++ b/src/kitUI/Cart/Cart.tsx
@@ -6,7 +6,7 @@ import { useState } from "react";
 import { GridSelectionModel } from "@mui/x-data-grid";
 import { testUser } from "@root/stores/mocks/user";
 import { useDiscountStore } from "@root/stores/discounts";
-import { calcCartData, createCartItem, findDiscountById, findDiscountFactorById, formatDiscountFactor } from "./calc";
+import { calcCartData, createCartItem, findDiscountById, findDiscountFactor, formatDiscountFactor } from "./calc";
 import { useTariffStore } from "@root/stores/tariffs";
 import { AnyDiscount, CartItemTotal } from "@root/model/cart";
 
@@ -28,8 +28,7 @@ export default function Cart({ selectedTariffs }: Props) {
                 {cartItemTotal.envolvedDiscounts.map(discountId => (
                     <DiscountTooltip
                         key={discountId}
-                        discounts={discounts}
-                        discountId={discountId}
+                        discount={findDiscountById(discounts, discountId)}
                         cartItemTotal={cartItemTotal}
                     />
                 ))}
@@ -44,23 +43,27 @@ export default function Cart({ selectedTariffs }: Props) {
             price: cartItemTotal.totalPrice,
         };
     });
+    
+    const cartDiscounts = cartTotal?.envolvedCartDiscounts.map(discountId => findDiscountById(discounts, discountId));
+    const cartDiscountsResultFactor = cartDiscounts && 1 - cartDiscounts.reduce((acc, discount) => acc * findDiscountFactor(discount), 1);
 
-    const envolvedCartDiscountsElement = (
+    const envolvedCartDiscountsElement = cartDiscounts && (
         <Box sx={{
             display: "inline-flex",
             flexWrap: "wrap",
         }}>
-            {cartTotal?.envolvedCartDiscounts.map((discountId, index, arr) => (
-                <span key={discountId}>
+            {cartDiscounts?.map((discount, index, arr) => (
+                <span key={discount._id}>
                     <DiscountTooltip
-                        discounts={discounts}
-                        discountId={discountId}
+                        discount={discount}
                     />
                     {index < arr.length - 1 &&
                         <span>,&nbsp;</span>
                     }
                 </span>
             ))}
+            &nbsp;
+            {cartDiscountsResultFactor && `= ${formatDiscountFactor(cartDiscountsResultFactor)}`}
         </Box>
     );
 
@@ -206,13 +209,11 @@ export default function Cart({ selectedTariffs }: Props) {
     );
 }
 
-function DiscountTooltip({ discounts, discountId, cartItemTotal }: {
-    discounts: AnyDiscount[];
-    discountId: string;
+function DiscountTooltip({ discount, cartItemTotal }: {
+    discount: AnyDiscount;
     cartItemTotal?: CartItemTotal;
 }) {
-    const discount = findDiscountById(discounts, discountId);
-    const discountText = formatDiscountFactor(findDiscountFactorById(discounts, discountId, cartItemTotal?.tariff.privilege.privilegeId));
+    const discountText = formatDiscountFactor(findDiscountFactor(discount, cartItemTotal?.tariff.privilege.privilegeId));
 
     return (
         <Tooltip title={
diff --git a/src/kitUI/Cart/calc.ts b/src/kitUI/Cart/calc.ts
index b9c9767..1947864 100644
--- a/src/kitUI/Cart/calc.ts
+++ b/src/kitUI/Cart/calc.ts
@@ -215,10 +215,7 @@ export function findDiscountById(discounts: AnyDiscount[], id: string) {
     return discount;
 }
 
-export function findDiscountFactorById(discounts: AnyDiscount[], id: string, privilegeId?: string) {
-    const discount = discounts.find(discount => discount._id === id);
-    if (!discount) throw new Error("Discount not found by id");
-
+export function findDiscountFactor(discount: AnyDiscount, privilegeId?: string) {
     switch (discount.conditionType) {
         case "cartPurchasesAmount":
             return discount.factor;