The unit costs of shipping from various points are given. Write all the origins in one column and all destinations in another. In the adjacent column write the unit costs of shipping from corresponding origin to the destination. Let the flows from each route be the changing cells. Los Angeles and Detroit can produce 1100 cars and 2900 cars respectively. The requirement of Houston and Tampa is of 2400 and 1500 cars respectively. Calculate the net outflows at the car supplier companies and the warehouse Atlanta. Also compute net inflows received by the customers.