What i do is Appx amount Calc.
Eg.
I brought Share 300 on Unitech @ 95
in Intra day I Sold 300 @ 96.5
So Diff is 1.5 RS
1.5 (Diff )X 300 ( Shares ) = 450 (Profit)
450 ( Profit ) - K ( Brokerage and STT and other Charges ) 450-K, Rs is the Profit in my Account.
Same thing Applies for Loss.
- K ( is a variable constant depending on your Account type with the Broker ).
I Hope its Simple..
If some one has a Better one..
Please do share with us .