Hi John
No..there is no such specific setting for AVR..it is just a cumulative cost run and data is taking from monthly run (CKMLCP) and calculating av cost of up to that period..example:
If you set period 1 to 3 then system will extract data from per 1 to per 3 and calculate *** cost up to per 3 (For three months' cumulative)
Kamal