diff --git a/src/runtime/utils/math.ts b/src/runtime/utils/math.ts
index f5c5794..da2e64f 100644
--- a/src/runtime/utils/math.ts
+++ b/src/runtime/utils/math.ts
@@ -1,9 +1,9 @@
-export function toPercentage(val: number, decimals = 0) {
+export function toPercentage(val: number, decimals = 0): string {
   const percentage = (val * 100).toFixed(decimals)
   return `${percentage}%`
 }
 
-export function roundToFixed(val: number | string, positions = 2) {
+export function roundToFixed(val: number | string, positions = 2): number {
   let text = 0
   if (typeof val === 'string') {
     text = +Number.parseFloat(val).toFixed(positions)