Final answer:
To calculate the NPV of total cost with the current manufacturing setup, estimate future costs based on probabilities of exchange rate and demand changes, discount them to present values, and sum them up.
Step-by-step explanation:
The Net Present Value (NPV) of total cost can be calculated by taking into account the cost of production and distribution from both the Mississippi and Japan facilities, as well as the expected exchange rate and demand fluctuations. The NPV is the present value of the expected future costs, discounted at an appropriate rate. To calculate the NPV, we need to estimate the future costs based on the probabilities of exchange rate and demand changes, and then discount them to their present values using an appropriate discount rate. Finally, we sum up all the present values to get the NPV of total cost.