Final answer:
The equivalent annual interest rate for a payday loan with a $50 fee and a $650 loan amount repaid in 13 days is approximately 474.42%.
Step-by-step explanation:
To find the equivalent annual interest rate, we need to calculate the interest paid on the payday loan fee. The fee is $50, and the loan amount is $650, which means $50 is the interest paid on the loan. Since the loan is repaid in 13 days, we need to find the annual equivalent rate. There are 365 days in a year, so we can use the formula:
Equivalent Annual Interest Rate = (Interest Paid / Loan Amount) * (365 / Number of Days)
Plugging in the values:
Equivalent Annual Interest Rate = (50/650) * (365/13)
Calculating this gives us an equivalent annual interest rate of approximately 474.42%. Rounded to the nearest hundredth of a percent, the equivalent annual interest rate is 474.42%.