At the beginning of the year, Marshall Square, Inc. issued TA 2, 3 $100 million (maturity value) of 20-year debentures. The debentures carry a 4.75 percent annual coupon rate (compounded semi-annually) and interest payments are made semi-annually. The market rate of interest at the time the debentures were issued was 5 percent. Calculate the gain or loss on retirement. What is the impact on bonds payable, bond discount and cash?