A company's forecast of demand in shown in the following table. Regular production costs $131 per unit with a monthly capacity of 42 units. Subcontracting costs $269 per unit and has unlimited capacity. It costs $13.9 per unit per month to hold inventory and $32 per unit per month to run backlogs. Period 1 2 3 Forecast 62 72 86 What is the total cost of production using a LEVEL aggregate plan?