Excel Online Structured Activity: Amortization schedule The data on a loan has been collected in the Microsoft Excel Online file below. Open the spreadsheet and perform the required analysis to answer the questions below. X Open spreadsheet Repayment of Principal $ $ $ Ending Balance $ $ $ b. What percentage of the payment represents interest and what percentage represents principal for each of the three years? Round all answers to two decimal places. % Interest Year 1: Year 2: Year 3: % Principal % % % % % c. Why do these percentages change over time? V. These percentages do not change over time; interest and principal are each a constant percentage of the total payment