MS EXCEL WHAT IF ANALYSIS HELP

Create a calculation to determine the amount of the donation matched.

Remember if the organization is a nonprofit AND the donation is less than $500, Lazarus will match the 50% of the donation up to $500. If it does not fit this criteria, then the matched amount will be $0.

- I have yes/no for non profit in column E and total donation in column G

Please help me start this what if analysis formula

I am not even sure where to begin