Need help in PCR for NZ payroll

Hi SAP Guru,

Please help me out to design a PCR for NZ payroll.

Below is the scenario.

1) if sum of wage type /364, /366/ , /466 is greater than 6% of the basic then wage type /366 and /466 to be generated as it is while values of wage type /364 should be 6% of the basic -value of /366.

2) if sum of wage type /364, /366 and /466 is less than 6% of the basic then all wage type i.e /364, /366 , /466 should be generated as it.

Wage type /364, 366 are generated through Infotype 0310 while /466 is the  30 % tax on wage type /366.

Please response me asap.