In the Task we have Actual cost column , which shows the product of rate and hours posted.
I have seen PRTASK and PRSASSIGNMENT table and in PRASSIGNMENT the column ACTCOST_SUM stores the Hours posted, but not the amount.
Question 1:- So which table i need to go with ? Should I choose the Rate matrix
Questions 2:- So the Actual cost column in the task which we see in application, fetches the rate from Rate matrix or from WIP ?