please explain, no excel

thank you!

Darin Clay, the CFO of MakeMoney.com, has to decide between the following two projects: The expected rate of return for either of the two projects is 13 percent. What is the range of initial investment (/0) for which Project Billion is more financially attractive than Project Million? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)