In Problem S11-8, the Adams Brewing Company management has negotiated a new shipping contract with a trucking firm between its Tampa brewery and its distributor in Kentucky that reduces the shipping cost per barrel from $0.80 per barrel to $0.55 per barrel. How will this cost change affect the optimal solution?

Data From Problem S11-8:

The John Adams Brewing Company has breweries in three cities; the breweries can supply the following numbers of barrels of draft beer to the company’s distributors each month:

                    

The distributors, spread throughout six states, have the following total monthly demand:

                    

The company must pay the following shipping costs per barrel:

                    

Determine the minimum cost shipping routes for the company.