Hi,
Please go through the below document.
Prorated Grant of Absence Quota for Contract Period in Time Evaluation
You can use the method described in it.
In your case, the no. of days will be 365 days and hence, you don't need to do this calculation.
On 01-Jan, pass the value of ZAR3 as 365 days and on other days, make it 0. Use the rounding rule in PCR.
Thanks and regards,
Vivek Barnwal