not in excel

I need the simple formula with all the process

(Computing floating-rate loans) (Related to Checkpoint 9.1 on page 292) The Bensington Glass Company entered into a loan agreement with the firm's bank to finance the firm's working capital. The loan called for a floating interest rate that was 30 basis points (.30 percent) over an index based on LIBOR. In addition, the loan adjusted weekly based on the closing value of the index for the previous week and had a maximum annual rate of 2.2 percent and a minimum annual rate of 1.75 percent. Calculate the rate of interest for Weeks 2 through 10