Ram Roy's firm has developed the following supply, demand, cost, and inventory data. Supply Available Regular Demand Period Time Overtime Subcontract Forecast 30 15 5 50 2 35 15 5 55 3 40 20 5 60 30 units $100 $160 $250 $2 Initial inventory Regular-time cost per unit Overtime cost per unit Subcontract cost per unit Carrying cost per unit per month Assume that the initial inventory has no holding cost in the first period and backorders are not permitted. Allocating production capacity to meet demand at a minimum cost using the transportation method, the total cost is $ (enter your response as a whole number).