How to Delete payroll result for all the employees at one time

Hi friends,

One of my client did mistake in payroll processing, they supposed to add monthly incentive for employees before giving the incentive they have dine the payroll run, (through regular payroll) now they want to delete all the existing payroll result and re run the payroll with changes. and here my doubt is for one by one we delete by PU01 and how can we delete payroll reusult for all the employees at a time ?

Please do needful.

Thanks,

Prasad.