A loan with a weekly compounded annual interest rate of 15.98% has a periodic interest rate of 0.3073%.
The periodic interest rate is calculated by dividing the yearly interest rate by the number of compounding periods. When there are more compounding periods, interest can be earned on top of or added to more regularly.
A periodic interest rate is one that can be applied to a loan or earned on an investment over a given time frame. Although interest rates are frequently compounded more frequently than once a year, lenders normally quote them on an annual basis.
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