diff --git a/package.json b/package.json
index 4b65f5a..11bef04 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "author": "Omid Azad",
   "main": "src/start.js",
   "name": "frontend",
-  "version": "2.2.2",
+  "version": "2.2.3",
   "private": false,
   "dependencies": {
     "@emotion/react": "^11.11.4",
diff --git a/src/dialogs/about.js b/src/dialogs/about.js
index d23e3ca..fd3f30a 100644
--- a/src/dialogs/about.js
+++ b/src/dialogs/about.js
@@ -28,7 +28,7 @@ const About = ({ open, setOpen }) => {
                                 SSP Price Calculation Utility{'\n'}
                                 created and developed by: Omid Azad{'\n'}
                                 Date created: May 5th 2024{'\n'}
-                                Ver 2.2.2
+                                Ver 2.2.3
                             </Typography>
                         </Box>
                     </Box>
diff --git a/src/pages/EntrySection.js b/src/pages/EntrySection.js
index 7ebbba2..5e5da7d 100644
--- a/src/pages/EntrySection.js
+++ b/src/pages/EntrySection.js
@@ -147,12 +147,12 @@ const EntrySection = () => {
 
                 if (originChandSherkati && !destChandSherkati) {
                     setOriginChandSherkatiPrice(halfOriginPrice);
-                    upgradeDiffValue = destPrice - (originPrice + originChandSherkatiPrice);
+                    upgradeDiffValue = Number(destPrice) - (Number(originPrice) + Number(originChandSherkatiPrice));
                     await setUpgradeDifference(upgradeDiffValue);
 
                 } else if (destChandSherkati && !originChandSherkati) {
                     setDestChandSherkatiPrice(halfDestPrice);
-                    upgradeDiffValue = (destChandSherkatiPrice + destPrice) - originPrice;
+                    upgradeDiffValue = (Number(destChandSherkatiPrice) + Number(destPrice)) - Number(originPrice);
                     await setUpgradeDifference(upgradeDiffValue);
 
                 } else if (originChandSherkati && destChandSherkati) {
@@ -164,7 +164,7 @@ const EntrySection = () => {
                 } else {
                     setOriginChandSherkatiPrice(0);
                     setDestChandSherkatiPrice(0);
-                    upgradeDiffValue = destPrice - originPrice;
+                    upgradeDiffValue = Number(destPrice) - Number(originPrice);
                     await setUpgradeDifference(upgradeDiffValue);
                 }