solve with solver in excel:

A quick-service restaurant chain wants to build four stores in the Chicago area. The company has previously employed six different construction companies, and, being satisfied with all of them, has invited them to bid for each job. Final offers (in thousands of dollars) are as shown in the table.

Since the restaurant chain wants to have the new establishments ready as soon as possible, it will award at most one job to each construction company. Which allocation results in a minimum total cost for the restaurant chain?

D E F G 4 6 store 1 store 2 store 3 store 4 construction companies 1 2 3 85,3 88 87,5 78,9 77,4 77,4 82 81,3 82,4 84,3 84,6 82,4 76,5 80,6 83,3 5 89,1 79,3 83,5 84,4 86,7 78,3 81,7 85,5 86,2 2