Her operations manager is considering a new$$plan$,$ which begins in January with $200$ units on hand and ends with zero inventory. Stockout cost of lost sales is $$$$125$ per unit. Inventory holding cost is $$$$20$ per unit per month. Ignore any$$idle$-$time costs. The plan is called plan B$.$

Plan$$B: Produce at a constant rate of $1,200$ units per$$month$,$ which will meet minimum demands. Then use$$subcontracting$,$ with additional units at a premium price of $$$$80$ per unit. Subcontracting capacity is limited to $1,100$ units per month. Evaluate this plan by computing the costs for January through August.

In order to arrive at the$$costs$,$ first compute the ending inventory and subcontracting units for each month by filling in the table below $($enter your responses as whole$$numbers$).$