FI-PP Very Urgent

My client is calculating Activity Price

But, System is not giving correct price.

What is the procedure (or)steps required

pls suggest

the procedure is

1) creating process order In COR1

2) Confirm in COR6N

3) Posting some amount in FI

4) Run assessment cycle KSU5

5) run activity price in KSII

here price is not getting correct

If any one have idea pls suggest

What is the procedure

I don’t have idea

pls