Well, i want to create an app that can make a ledger in accounts. just for example 4 fileds
1- Name
2- Debit
3- Credit
This will be input
out put for form will be
1- Name
2- Debit
3- Credit
4- Balance (Debit-credit+previous balance) filed
i think a person with account knowledge already know it, can you please guide me what to learn and how to start this , specailly i want to know how to calulate balance filed.(i would like to make a running blance after every row)