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Bob borrowed $10,000 at an effective annual rate of interest of 7%. Bob’s plan was to repay the loan with equal principal repayments plus interest at the end of each year for 20 years. After the 10th payment, Bob decides to change his payment scheme and pay the outstanding balance with equal annual payments. The loan will still be repaid in 20 years. Calculate the difference between the 10th and 11th payment.