Your bank offers 3-year certificates of deposit with a stated rate of interest of 17.98 \% p.a., compounded quarterly. Your cousin (who works at Acme Bank and Trust, a competitor) wants to know what stated rate of interest you would require from them in order to switch your business to their bank. Acme's CD's are compounded on a monthly basis. What is the minimum stated interest rate you should ask for from Acme in order to make you indifferent to switching? Record your answer as a percent, rounded to one decimal place, but do not include a percent sign in your answer. For example, enter 0.1578658=15.78625% as 15.8