Nyiomi grows a certain 'cash crop' in her folk$$s backyard. It costs her $$240,000$ to buy the seed, prepare the ground, and plant it$.$ After two years $+$ one year she hires Joe to harvest the crop for $$40,000$ and then sells the crop that year for $$350,000.$ Her interest rate is $5\%.$

What is the net present value $($NPV$)$ of Nyiomi$$s investment? Is she making a bank?

What is the IRR of this investment? What does it mean to Nyiomi?