| Answer |
| Level Debt |
| Principal amount | 111,100,000 |
| Interest rate | 5.875% |
| Term in years | 20 |
| Structure | Level debt service |
| Year | Principal outstanding | Interest | Principal repaid | Total semi-annual service | Total annual debt service |
| 0.5 | 111,100,000 | 3,263,563 | | 3,263,563 |
| 1 | | 3,263,563 | 3,061,020 | 6,324,582 | 9,588,145 |
| 1.5 | 108,038,980 | 3,173,645 | | 3,173,645 |
| 2 | | 3,173,645 | 3,240,854 | 6,414,500 | 9,588,145 |
| 2.5 | 104,798,126 | 3,078,445 | | 3,078,445 |
| 3 | | 3,078,445 | 3,431,255 | 6,509,700 | 9,588,145 |
| 3.5 | 101,366,871 | 2,977,652 | | 2,977,652 |
| 4 | | 2,977,652 | 3,632,841 | 6,610,493 | 9,588,145 |
| 4.5 | 97,734,030 | 2,870,937 | | 2,870,937 |
| 5 | | 2,870,937 | 3,846,270 | 6,717,207 | 9,588,145 |
| 5.5 | 93,887,760 | 2,757,953 | | 2,757,953 |
| 6 | | 2,757,953 | 4,072,239 | 6,830,192 | 9,588,145 |
| 6.5 | 89,815,521 | 2,638,331 | | 2,638,331 |
| 7 | | 2,638,331 | 4,311,483 | 6,949,814 | 9,588,145 |
| 7.5 | 85,504,039 | 2,511,681 | | 2,511,681 |
| 8 | | 2,511,681 | 4,564,782 | 7,076,463 | 9,588,145 |
| 8.5 | 80,939,256 | 2,377,591 | | 2,377,591 |
| 9 | | 2,377,591 | 4,832,963 | 7,210,554 | 9,588,145 |
| 9.5 | 76,106,293 | 2,235,622 | | 2,235,622 |
| 10 | | 2,235,622 | 5,116,900 | 7,352,522 | 9,588,145 |
| 10.5 | 70,989,393 | 2,085,313 | | 2,085,313 |
| 11 | | 2,085,313 | 5,417,518 | 7,502,831 | 9,588,145 |
| 11.5 | 65,571,876 | 1,926,174 | | 1,926,174 |
| 12 | | 1,926,174 | 5,735,797 | 7,661,971 | 9,588,145 |
| 12.5 | 59,836,079 | 1,757,685 | | 1,757,685 |
| 13 | | 1,757,685 | 6,072,775 | 7,830,460 | 9,588,145 |
| 13.5 | 53,763,304 | 1,579,297 | | 1,579,297 |
| 14 | | 1,579,297 | 6,429,550 | 8,008,848 | 9,588,145 |
| 14.5 | 47,333,753 | 1,390,429 | | 1,390,429 |
| 15 | | 1,390,429 | 6,807,287 | 8,197,716 | 9,588,145 |
| 15.5 | 40,526,467 | 1,190,465 | | 1,190,465 |
| 16 | | 1,190,465 | 7,207,215 | 8,397,680 | 9,588,145 |
| 16.5 | 33,319,252 | 978,753 | | 978,753 |
| 17 | | 978,753 | 7,630,639 | 8,609,392 | 9,588,145 |
| 17.5 | 25,688,613 | 754,603 | | 754,603 |
| 18 | | 754,603 | 8,078,939 | 8,833,542 | 9,588,145 |
| 18.5 | 17,609,675 | 517,284 | | 517,284 |
| 19 | | 517,284 | 8,553,576 | 9,070,860 | 9,588,145 |
| 19.5 | 9,056,099 | 266,023 | | 266,023 |
| 20 | | 266,023 | 9,056,099 | 9,322,122 | 9,588,145 |
| Total | | 80,662,892 | 111,100,000 | 191,762,892 | 191,762,892 |
| Note: |
| The answer to questions 3 displays semiannual interest payments for a level debt structure. |
| Every six months, an interest-only payment is made. At the end of each year, a payment of interest and principal is due. |
| The calculations still key off the PMT calculation, which is used to determine total annual debt service. |
| Interest expense for each period is calculated by multiplying the face value of the bond by the annual interest rate divided by two. |
| This approach is typical in TVM problems, where it is important to match the interest rate with the corresponding compounding or payment period. |
| The annual principal payment is calculated by subtracting the two interest payments from the total annual debt service calculated by PMT. |
| In a typical bond cash flow, the periods would be identified with actual dates, even if those dates might be subject to change in the future. |