Suppose you pay back $555 on a $525 loan. You had the loan for 75 days. What was your simple annual interest rate?

The gave me this formula: I=Prt. I know 75 days is t but it needs to be represented in years. Im not sure what to input for that. 365 - 75 = 290

I got 1.261%, which was wrong

State your result to the nearest hundredth of a percent.

Could you show me how to input this information into the formula?