And in which table is each of those fields?
Field -. Table
Total Sales -> SalesPurchase
Total Purchase -. SalesPurchase
Expenses -. Expenses
Total Deposited -. BankTransaction
Total Withdraw -. Banktransaction-.
In your relationship graph, unless some of the other Tutorial: What are Table Occurrences? shown are occurrences of the three tables you just listed, you do not have relationships linking those three tables. Either you need to define relationships linking SalesPurchase, Expenses and BankTransaction or you need to make another post explaining which table occurrences in your relationship chart already establish those links.