This the assignment but I am not getting how the percentage moves forward as the payments are being made. Any help would be awesome.

Bank Interest Calculations Beginning Balance 12/1/2014 1/1/2015 2/1/2015 3/1/2015 Interest Expense Principal Payment Interest Expense Total Payment Ending Balance $200,000 $200,000 = = = = Carrying Amount Market interest rate Time 0.09 0.09 0.09 1/12 1/12 1/12 Date 2014 Mar. 1 Dec. 1 Dec. 31 Dec. 31 2015 Jan. 1 Feb. 1 Mar. 1 Mar. 1 Accounts and Explanation Debit Credit Beginning Balance 12/1/2014 1/1/2015 2/1/2015 3/1/2015 4/1/2015 5/1/2015 6/1/2015 7/1/2015 8/1/2015 9/1/2015 10/1/2015 11/1/2015 12/1/2015 1/1/2016 2/1/2016 3/1/2016 $200,000 Principal Payment Interest Total Expense Payment Ending Balance $200,000 EMERGENCY PHARMACIES Balance Sheet (Partial) March 1, 2015 Liabilities Current Liabilities Current Portion of Notes Payable Current Portion of Mortgage Payable (See table) Total Current Liabilities Long-Term Liabilities Notes Payable Mortgage Payable Total Long-Term Liabilities Total Liabilities a. b. c. d. Date 2014 Jun. 30 Accounts and Explanation Available accounts for the journal entry Cash Interest Expense Discount on Bonds Payable Debit Credit