I Am Having A Very Hard Time Coming Up With These Formulas Create A Structured R

I am having a very hard time coming up with these formulas.Create a structured reference in cell H4 that will multiply the Streaming_Revenues amount by the value in cell B2 if the Rating is PG-13. Otherwise, it will display0.Create a structured reference in cell I4 that subtracts the Donation from the Streaming_Revenues.