$4.$ Calculate the project$$s NPV$,$ IRR, and payback period.

$5.$ Perform sensitivity analyses and calculate the project$$s NPV$,$ IRR, and payback period if

a$.$ sales volume increases $4\mathrm{.}5\%$

b$.$ unit price increases $20\%$

c$.$ direct labor cost increases $5\%$

d$.$ raw materials increase $5\%$

e$.$ energy cost increases $5\%$

Sales Projected $600,000$ per month

Unit Price $5$ pesos per liter

timeframe $5$ years

WACC $18\mathrm{.}20\%$

Equipment Cost $50,000,000$

Resale Value $4,000,000$

Life of Machine $5$ years

Raw Materials $1\mathrm{.}8$ per liter

Direct Labor Cost $180,000$ per month

Energy Cost $50,000$ per month

Rent Expense Costs $60,000$ per month

administrative and selling expense $300,000$ a year

overhead cost $($accounting fee$)1\%$ of sales

Erosion after tax cash flows $800,000$ per year

tax rate $30\%$

opportunity cost $($lease$)60,000$ per year