Sender
Recipient
Currency
Log
Date
+
50 
+
50
+
100
+
50
+
50
+
50
+
50
+
50
+
100
+
100
-
400 Activity Cost (Cost to Bob for Apples)
-
400 Activity Cost (Cost to Bob for Apples)
-
400 Activity Cost (Cost to Bob for Apples)
+
800
-
400 Activity Cost (Cost to Bob for Apples)
-
400 Activity Cost (Cost to Bob for Apples)
+
800
+
50
+
50
+
50
+
50
+
50
-
400 Activity Cost (Cost to Bob for Apples)
+
100
+
50
+
100
+
150
-
400 Activity Cost (Cost to Bob for Apples)
-
400 Activity Cost (Cost to Bob for Apples)
+
350