Purchase price = [(101 + 11 / 32) / 100] × 10,000 = $10,134.375
Selling price = [(101 + 17 / 32) / 100] × 10,000 = $10,153.125
Interest = 9¾% of 10,000 = $975.00
Return = (Pend − Pbeg + Interest) / Pbeg = (10,153.125 − 10,134.375 + 975.00) / 10134.375 = 9.81%