Assume that the Goodfellows National Bank pays 5 percent interest on depositors' 4^Commercial Banks accounts and charges 10 percent interest on loans it makes to businesses. What is (interest rate spread) Goodfellows' interest rate spread? Perhaps that was too simple. To make it a little more challenging, assume that Goodfellows pays 5 percent interest on depositors' passbook savings accounts, which make up 50 percent of all funds on hand, and 7 percent interest on depositors' Certificates of Deposit, which make up the other 50 percent of funds received. Next, assume that Goodfellows charges 10 percent interest on short-term loans, which make up 50 percent of all loans outstanding, and 12 percent interest on long-term loans, which make up the other 50 percent of all loans outstanding. Now what is Goodfellows' interest rate spread