Update app.py

app.py

@@ -278,10 +278,10 @@ def process_dataframe(df):
         # -------------------------
         try:
             x = df_pred.copy()
-            df_pred['GIA_Predicted'] = gia_model.predict(x)
-            df_pred['Grade_Predicted'] = grade_model.predict(x)
-            df_pred['ByGrade_Predicted'] = bygrade_model.predict(x)
-            df_pred['Makable_Predicted'] = makable_model.predict(x)
+            df_pred['GIA_Predicted'] = np.expm1(gia_model.predict(x))
+            df_pred['Grade_Predicted'] = np.expm1(grade_model.predict(x))
+            df_pred['ByGrade_Predicted'] = np.expm1(bygrade_model.predict(x))
+            df_pred['Makable_Predicted'] = np.expm1(makable_model.predict(x))
             df_pred['GIA_Diff'] = df_pred['EngAmt'] - df_pred['GIA_Predicted']
             df_pred['Grade_Diff'] = df_pred['EngAmt'] - df_pred['Grade_Predicted']
             df_pred['ByGrade_Diff'] = df_pred['EngAmt'] - df_pred['ByGrade_Predicted']