VAT on used items (DK)

[frydendal]

Hello

Is it possible to charge VAT on sales (differece between purchases and sales (VAT on used items i DK)) not the entire amount.

For example,
Item purchase price 100.00
Item sales price       300.00
        differance        200.00

VAT of differance 200 + 25% VAT = 50.00

300 + 50 = 350