We are evaluating a project that costs $839834, has an eight-year life, and has no salvage value. Assume that depreciation is straight-line to zero over the life of the project. Sales are projected at 59174 units per year. Price per unit is $43, variable cost per unit is $22, and fixed costs are $423985 per year. The tax rate is 35%, and we require a return of 18% on this project.

In percentage terms, what is the sensitivity of NPV to changes in the units sold projection?

Can I have this as a Percent Please?