P6 Physical % Complete & Actual Cost

Well I have a solution, I don’t know if it suit for your need. It is calculated based on the Budgeted Total Cost and %Physical complete.
1. Add a User Defined field (Enterprise>User Defined Fields)called: "Actual cost of % Physical" or anything u like.
2. Add a global change (Tool>Global Change) called: "Physical ToDate Cost" or anything u like.
3. Modify the above change:
- Select Subject area as Activities
- Delete any condition in "If" field
- In "Then" field:

Parameter is Parameter/Value Operator Parameter/Value
Actual cost of % Physical = Physical % Complete * Budgeted Total Cost.

Sorry, there was some mistake in the previous post. Primavera won’t understand that it need to multiply a percentage not a number. However I could not edit it, i post new then.
1. Add a user defined field called :"Actual cost of % Physical Complete" with data as "Cost"
Add one more user defined field called: "Physical % Complete Indicator" or anything, with data as "Number".
2. Add two global changes:
2.a: Physical % Complete Change to devide Physical % Complete to 100.
Delete anything in "If" box.
In "Then" box:
Parameter is Parameter/Value Operator Parameter/Value
Physical % Complete Indicator = Physical % Complete / 100
2.b: Actual cost change
"Actual cost of % Physical Complete" = Budgeted Total cost * Physical % Complete Indicator

Thank you, Duy Huynh. I found a similar process, but yours looks easier. I will try it out.