how do i find this answer with just a calculator can you please do a step by step to find the interest rate im using pen and paper.

Annuity Loans For example: - A piece of equipment costs $100,000 and provides positive cash flows of $25,000 for 6 years. - What rate of return does this opportunity offer? INPUT 6 N -100,000 25,000 I/YR PV PMT 0 FV