diff --git a/src/components/estimate/Estimate.jsx b/src/components/estimate/Estimate.jsx
index 63c35b35..c800d831 100644
--- a/src/components/estimate/Estimate.jsx
+++ b/src/components/estimate/Estimate.jsx
@@ -493,19 +493,37 @@ export default function Estimate({ params }) {
     setSelection(newSelection)
   }
 
+  function formatNumberWithComma(number) {
+    return number.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',')
+  }
+
   //주택PKG input 변경
   const onChangePkgAsp = (value) => {
     if (estimateContextState.estimateType === 'YJSS') {
-      let pkgAsp = Number(value.replace(/[^-\.0-9]/g, '').replaceAll(',', ''))
-      if (isNaN(pkgAsp)) {
-        pkgAsp = 0
-      } else {
-        pkgAsp = pkgAsp.toLocaleString()
+      let newValue = value.replace(/[^0-9.]/g, '')
+      if (newValue.length > 1) {
+        newValue = newValue.replace(/(^0+)/, '')
+        if (newValue.length === 0) {
+          newValue = '0'
+        }
       }
-      //현재 PKG용량값 가져오기
 
+      const parts = newValue.split('.')
+      if (parts.length > 2) {
+        newValue = parts[0] + '.' + parts.slice(1).join('')
+      }
+
+      if (parts[1] && parts[1].length > 2) {
+        newValue = parts[0] + '.' + parts[1].substring(0, 2)
+      }
+
+      let pkgAsp = newValue || '0'
+
+      //현재 PKG용량값 가져오기
       let totVolKw = estimateContextState.totVolKw * 1000
-      let pkgTotPrice = pkgAsp?.replaceAll(',', '') * totVolKw * 1000
+      let pkgTotPrice = parseFloat(pkgAsp?.replaceAll(',', '')) * totVolKw * 1000
+
+      // pkgAsp = formatNumberWithComma(parseFloat(pkgAsp).toFixed(2))
 
       setEstimateContextState({
         pkgAsp: pkgAsp,