In a sawmill, boards and pellets are produced (of the remains that do not become boards). The joint costs of the sawmill before the split point in production (for drying, storage and handling) amount to $ 400,000 per year. In total, 2000 tonnes of boards and 900 tonnes of pellets are produced during the year. The selling price per ton of sawn timber is $ 7000 and $ 1200 per ton of pellets.

a)Distribute the common costs according to the division method. b)Distribute the common costs according to the sales value.