In the following diagram, the NPV is most sensitive to changes in which variable?

	maintenance cost
	sales
	discount rate
	interest rate

Sensitivity Analysis Maintenance cost r16% Sales r = 16% NPV 400000 350000 300000 250000 200000 150000 100000 50000 Maintenance cost r= 12% *Sales r= 12 % 0 -10% 0% 10% % Change in variable