Chris owes $25,000.00 with interest at 7% c.a. for 4 years. On the due date, this debt is commuted into 2 equal payments of $9740.73 due in 3 and 6 months respectively and a final payment of $15,000.00 due in 12 months. The interest rate was set at 8% c.q. Verify these calculations using the U.S. Rule (declining balance method)