diff --git a/frontend/mining-admin-web/src/lib/utils/format.ts b/frontend/mining-admin-web/src/lib/utils/format.ts
index 9be81417..fb59ca6f 100644
--- a/frontend/mining-admin-web/src/lib/utils/format.ts
+++ b/frontend/mining-admin-web/src/lib/utils/format.ts
@@ -11,7 +11,7 @@ export function formatNumber(value: number | string | undefined | null, decimals
   return parts.join('.');
 }
 
-export function formatDecimal(value: string | number | undefined | null, precision = 8): string {
+export function formatDecimal(value: string | number | undefined | null, precision = 7): string {
   if (value === undefined || value === null) return '-';
   try {
     const decimal = new Decimal(value);