Consider a 4-year project which requires an initial cash outlay of $50 000, has an opportunity cost of capital of 10% p.a., and has had the following variable estimates

Variable	Estimates
Selling price	$60 per unit
Variable cost	$30 per unit
Fixed operating cost	$4,000
Sales volume	800

Sales on credit are expected to account for 25% of total sales per year, and the remaining sales are in cash. Credit sales are expected to be settled after 1 year. You are required to conduct additional analyses as follows:

a) Calculate the NPV of this project

b) Conduct sensitivity analysis regarding the selling price if the estimate of the selling price in the pessimistic scenario is $55 and that in the optimistic scenario is $70

c) Calculate the break-even point of sales volume