Please using Stepped stone method not the excel. PleaseThank you If it helps I will LIKE THIS ANSWER

Q2) Suppose the U.S. pharmaceutical company has 3 factories supplying the warehouses for 3 major consumers and its management wants to determine the minimum-cost shipping schedule for its monthly output to these customers. Factory supply, warehouse demand, and shipping costs per case for these drugs are shown in following table.

Data for U.S. pharmaceutical transportation problem

Factory	Supply	warehouse	demand
Indianapolis	50	Columbus	40
Phoenix	30	St. Louis	60
New York	75	Denver	55

Shipping costs per case (in dollars)

From To	Columbus	St. Louis	Denver
Indianapolis	30	30	5
Phoenix	10	10	10
New York	20	10	35

Please indicate the optimum low-cost transportation plan for the U.S. pharmaceutical company

1. By using northwest corner method and then stepping stone approach. Show details of your calculation, show all the possibilities, and calculate total cost for each step.