Example # $4$

A project has annual cash flow of $$7,500$ for the next $10$ years and then $$10,000$ each year for the following $10$ years. The IRR of this $20-$year project is $11\mathrm{.}5\%.$ If the firm's WACC is $9\mathrm{.}5\%,$ what is the project's NPV$?$ Show step by step of how to solve this using a finacial calculator.