EXAMPLE

A retailer experiences a seasonal demand pattern for its services. Labor requirements over a typical six$-$month period are provided in the table below. Costs associated with operations are as follows: Wages $=$$$2,000$ per worker per month; Hiring cost $=$$$1,000$ per worker; and Layoff cost $=$$$1,500$ per worker. The retailer would like to prepare an aggregate plan by using a chase demand strategy $($without overtime and subcontracting$).$ If their current workforce size is $10$ workers, what would be the total cost of such a plan?

$\backslash$table$[[$Month$,$September,December,January,February,March,April$],[$Requirement$,7,8,9,11,12,7],[$Workfore $10,7,8,9,11,n,n$