Hi Sindu,
This wage type(/ZRB) is related to "BF Perk value: Housing", this wage type amount will come from /3RB, If in case is there any difference in housing perk.
This wage type will generate from IN44 standard PCR, if you are using custom check the same and this wage type will from /3RB -> /ARB-> /ZRB.
Copy this wage type /ZRB from /3RB and change the properties same as below mentioned:
Processing Class: 6 - 0, 5 - 0, 20 -1, 30 - 0, 70 - 1.
Cumulation Class: 27 Should be checked.
Evaluation Classes: 9 - 01, 11 - 02.
Hope this will help you.
Regards,
Venkat Polisetty