Given the projected demands for the next six months, prepare an aggregate plan that uses inventory, regular time, overtime, subcontract and backorders. Regular time is limited to 160 units per month (Cost per Unit =$60). Overtime is limited to a maximum of 20 units per month (Cost per Unit =$90). Units purchased from the subcontractor (Cost per Unit =$108) cannot exceed 50 per month and the total purchases from the subcontractor over the 6 month period cannot be over 200 units. Backorders cannot exceed 70 units in any given month (Cost per Unit =$5 ) and must be no more than 10 in Period 6. Average Inventory Holding cost per Unit =$10. Forecasted Demand as well as Beginning and desired Ending Inventory are listed in the table below. Required: Find the Minimum Cost Production Plan by Creating a Spreadsheet in Excel. Use Solver to find the Minimum Cost Solution. Leave a copy of your Spreadshcet in the DropBox. Total Cost Month 1 = ,14790) Total Cost Month 2 ,13610) Total Cost Month 3 = Total Cost Month 4 - Total Cost Month 5 ,11600) Total Cost Month 6 = Total Cost All Periods = ,82710) A Hint: Range (14590 A Hint: Range (13500 A A A Hint: Range (11510 A A Hint: Range (81710 Answer Format: No Dollar (\$) signs or commas -. Answers should be whole aumbers