apply a financial break-even analysis. After, hold everything constant but the units of paper sold. At what number of units sold would the project break even?

note: someone answered this here but the numbers are uncleared (from where they come) for ex. A is not there and C is calculated as A/B, in pv of after tax sale, how did you calculate 0.463. also tax at 40% = 329195/60*40 > what are those numbers where they come from? finally contribution per unit (30-20) can you please explain this?

e i. Project break even Project break even is the situation where there is no profit or loss from the project. That means, NPV become ZERO. In order to achive that the Present values of cash flows should be equal to initial investment less PV of sale value of asset