Pay scale structure

Hi,

I just want to configure indian payroll according to the pay scale structure, please help me.

My CTC is 3,00,000/-

Monthly gross salary is 25000.

Basic salary is 50% of Gross salary,

HRA is 40% of Basic.

Conveyance is 800,

CEA and CHA is 100 and 300.

These things should reflect in IT 0008.

How to do this one?

I maintained the CTC WT in V_t510. But i need to divide that by 12 to calculate for monthly amount.

Where i need to do?

Regards,

Vijay