Please show your work. Thanks.

Problem 13.13 Ram Roy's fe has developed the following supply, demand, cont, and inventory chata Supply Available Demand Forecast Period 1 2 3 Regular Time 40 30 30 Overtime Subcontract 15 5 15 5 20 5 888 Initial inventory 20 units Regular.time cost per unit $100 Overtime cost per unit $100 Subcontract cost per unit $250 Carrying cost per unit per month $2 Assume that the initial Inventory has no holding cost in the first period and backorders are not permitted. Alocating production capacity to meet demand at a minimum cost using the transportation method, the total cost is $enter your response as a whole numbers