Raise Inventory Cost

Hello Dears

I have this case which I need to Raise my inventory Cost based on Purchases

Ex:
Item "X"

Quantity "100 Each"

Valuation Method "Moving Average"

Item Cost "10 GBP/ Each"

Total Cost = 100 x 10 = 1000 GBP

Each Period the Company Pays to the government Fees to get license to sell that product
License Fees = 500 GBP

So we need to distribute the "500 GBP" over the "100 Each"

New Item Cost = (1000 GBP + 500 GBP)/ 100 Each = 15 GBP/ Each

Is that Possible ??