diff --git a/app/components/HistoricalResult.tsx b/app/components/HistoricalResult.tsx
index 7e17db2..d2cb84b 100644
--- a/app/components/HistoricalResult.tsx
+++ b/app/components/HistoricalResult.tsx
@@ -28,7 +28,7 @@ export const HistoricalResult = ({ data }: HistoricalResultProps) => {
       monthsSet.add(month);
       quotaPremiumMap[vehicle_class] = {
         ...quotaPremiumMap[vehicle_class],
-        [month]: parseInt(premium, 10),
+        [month]: premium,
       };
     });
 
diff --git a/app/components/MonthlyResult.tsx b/app/components/MonthlyResult.tsx
index 95a8bd1..1e2d65e 100644
--- a/app/components/MonthlyResult.tsx
+++ b/app/components/MonthlyResult.tsx
@@ -20,14 +20,10 @@ export const MonthlyResult = ({ data }: MonthlyResultProps) => {
     ...new Set(filteredData.map(({ bidding_no }) => bidding_no)),
   ];
   const chartCategories = filteredData.map((item) => item.vehicle_class);
-  const premium = filteredData.map((item) => parseInt(item.premium, 10));
-  const bidsReceived = filteredData.map((item) =>
-    parseInt(item.bids_received.replace(/,/g, ""), 10),
-  );
-  const bidsSuccess = filteredData.map((item) =>
-    parseInt(item.bids_success.replace(/,/g, ""), 10),
-  );
-  const quotas = filteredData.map((item) => parseInt(item.quota, 10));
+  const premium = filteredData.map((item) => item.premium);
+  const bidsReceived = filteredData.map((item) => item.bids_received);
+  const bidsSuccess = filteredData.map((item) => item.bids_success);
+  const quotas = filteredData.map((item) => item.quota);
 
   const graphTitle = ({
     month,
diff --git a/types/index.ts b/types/index.ts
index 416a85b..8633c73 100644
--- a/types/index.ts
+++ b/types/index.ts
@@ -30,8 +30,8 @@ export interface COEResult {
   month: string;
   bidding_no: string;
   vehicle_class: string;
-  quota: string;
-  bids_success: string;
-  bids_received: string;
-  premium: string;
+  quota: number;
+  bids_success: number;
+  bids_received: number;
+  premium: number;
 }