Sorry I was not very clear.
There are 3 lists: list 1 for buying; list 2 for selling and list 3 for bak balance. I need what writing il list 3 (bank balance) for the calc element.
step 0:
User 1 (any user) has 35 ?
step 1:
User 1 (any user) buys food for a price of 5 ? so he has 30 ?
step 2:
User 1 (any user) sell cheese for a price of 15 ? so he has 45 ?
step 3
User 1 (any user) buys tomato for a price of 5 ? so its bank balance decreases to 40 ?
Please let me know if this time the explanation is ok
There are 3 lists: list 1 for buying; list 2 for selling and list 3 for bak balance. I need what writing il list 3 (bank balance) for the calc element.
step 0:
User 1 (any user) has 35 ?
step 1:
User 1 (any user) buys food for a price of 5 ? so he has 30 ?
step 2:
User 1 (any user) sell cheese for a price of 15 ? so he has 45 ?
step 3
User 1 (any user) buys tomato for a price of 5 ? so its bank balance decreases to 40 ?
Please let me know if this time the explanation is ok