Just wanted to say that I really like your calculator. It knows the difference between NPV and IRR, Differentiates between Capex & Opex, Infra cost, capital, allows difficulty, price, hardware appreciations / depreciation rates, cost of capital, revenue, operating profit and net profit. It saves me creation of a spreadsheet for a quick reality check. Most other bitcoin mining calculators and some celebrity youtubers just dumbly repeat the current difficulty and price MoM and confuses between NPV/IRR, Don't understand difference between revenue and profit forget about cost of capital. Good job guys and girls. I really appreciate your effort into making this calculator though it does not earn you money directly. It shows your love for doing things right and the best you can even for a free tool.