The opening balances of the firm's selected inventory accounts were as follows (in HUF): Raw materials (2500 kg) 3250000, additional cost of materials 227500.250 kg of raw materials were used for production. 200 kg of raw materials were purchased for 286000 HUF + VAT, the transportation cost was 54000 HUF + VAT. Required: Determine the following costs. Amount Historical cost of materials (real, in HUF) Invoice cost of materials (HUF/kg) Cost of materials (real, in HUF) Closing inventory (kg) Closing inventory (real, HUF)