diff --git a/taptap/taptap_report.py b/taptap/taptap_report.py
index aacb4cb..36ea84e 100644
--- a/taptap/taptap_report.py
+++ b/taptap/taptap_report.py
@@ -29,7 +29,11 @@ class TapTapReport:
             b_d = self.split_order_data(item)
             for key in b_d:
                 all.setdefault(key, {}).update(b_d[key])
-        print(all)
+        #print(all)
+        diff_order = {}
+        for key in all:
+            diff_order[key] = all.get(self.day, 0) - all.get(self.bday, 0)
+        print(diff_order)
 
 
     def split_order_data(self, day):