how would you solve 7-8-9 from the table? Thanks!

6. Given the expected cash flow forecasts listed below, determine the NPV of the project given changes in the cash fiow components using an 8.0% cost of capital. Assume that all varlables remain constant, except the one you are changing. 7. What happens to the NPV of question 6 if variable costs increase to 83% of sales? Sec. Excel Solwhi.n. NPV =938 8. What happens to the NPV of question 6 if sales decrease to 14,000 ? Eece. Ex.1. NPEN. =1,567 9. What happens to the NPV of question 6 if fixed costs increase to 2,500