Actual Costing calculation not considering miscellaneous receipt quantity

Hi

We observed that Actual Costing is not taking miscellaneous receipt quantity into consideration during cost calculation.  As a result, VALUE adjustments are spread across incorrect quantity.

Say we have an item A with:

Prior Period Onhand quantity of 10 @ prior period item cost = 5

Current Period PO receipts quantity of 5 @ cost = 5

Current Period Misc receipt of 5

VALUE Adjustment of 15 $

PMAC cost calculation for current period is coming as (  (10*5) + (5*5) + 15 ) / (10+5) = 6 $

We wanted the VALUE adjustment to be spread across current total onhand quantity of 10+5+5 = 20, but it is being spread across only 10+5 = 15 quantity.

Can you please let us know, if there is a way to achieve this functionality ?