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X AV LY ntti IS Kappale 1. There are three cost centers in Roberts company stock, production and management and marketing. The costs are as follows: Total costs are 387 580.- Direct material costs are 180 000.- and direct labour costs 70 000,-. Indirect costs are Stock 16 200 - production 59 500 - and management and marketing 61 880.- a) Define the overhead rates b) How much is the price including VAT of the X-product, when the direct material costs are 920.- and direct labour costs 370