b. Compare the costs to a level plan that uses Inventory to absorb fluctuations. Inventory carrying cost is $2 per engine per month. Backlog cost is $90 per engine per month. There should not be a backlog in the last month. Assume that using overtime is not an option. Please refer to the photo of the question and answer all the mising vaules in an execl style response. Will be tiving thumbs up for correct answer and format. Thanks!

Manager T. C. Downs of Plum Engines, a producer of lawn mowers and leaf blowers, must develop an aggregate plan glven the forecast for engine demand shown in the table. The department has a regular output capacity of 130 engines per month. Regular output has a cost of $60 per engine. The beginning inventory is zero engines. Overtime has a cost of $90 per engine. b. Compare the costs to a level plan that uses inventory to absorb fluctuations. Inventory carrying cost is $2 per engine per month Backlog cost is $90 per engine per month. There should not be a backlog in the last month. Assume that using overtime is not an option. (Negatlve amounts should be Indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required.)