Calc of WT in IT0014 based on Per day payment

Dear Experts,

We had a requirement of Creation of WT based on Per day Payment, like scenario will be as follows.

1) WT : Meal Allowance (Per day 100 will get based on calender days like Jan-3100 & Feb 2800)

2) If any LOP in month then he/she won't get MA on thar day ( Like Cal.Day 31 & LOP 2 days then Payment is 2900 (31-2=29)

I had written PCR as below for achieving the above scenario & which is working fine & also working fine for Separation Cases alos.

But the Problem will for those whose record is Delimited in mid of month then I am getting Problem, in that case system giving Full Month Pay,

Can I achieve this by PCR, pls suggest.