Capacity Source

Month $1$

Month $2$

Month $3$

Month $4$

Labor

$$Regular time

$245$

$265$

$300$

$300$

$$Overtime

$15$

$24$

$26$

$22$

Subcontract

$12$

$15$

$15$

$17$

Demand

$260$

$304$

$331$

$305$

The cost of producing each dialysis unit is $$$$985$ on regular$$ time, $$$$1$ comma $310$ on$$ overtime, and $$$$1$ comma $500$ on a subcontract. Inventory carrying cost is $$$$100$ per unit per month. There is to be no beginning or ending inventory in stock and backorders are not permitted.

Part $2$

Minimizing cost using the transportation$$ method, the optimal cost is $$$

$$

enter your response here $($enter your response as a whole$$ number$).$