Your company has arranged a revolving credit agreement for up to $$74$ million at an interest rate of $1\mathrm{.}43$ percent per quarter. The agreement also requires your company to maintain a compensating balance of $4$ percent of the unused portion of the credit line, to be deposited in a noninterest$-$bearing account. Your company's short$-$term investment account at the same bank pays an interest rate of $\mathrm{.}57$ per quarter. What is the effective annual interest rate if your company borrows $$39$ million for one year?