In: Finance
John purchased a house in Atlanta. He made no down payment so the principal of the mortgage equals to the price of the house: $234,000. The APR of his mortgage is 5%. The interest is compounded monthly. He made an agreement with the bank that he would pay off the mortgage in 30 years.
Six years later, the businessman did very well at his job. He saved enough money to make a $80,000 payment to the lender to get rid of the mortgage sooner. His salary doubled, which makes him able to afford higher monthly payments. Also, his risk gets lower so the lender charges him less interest now. He plans to pay off the mortgage in another six years.
In the spreadsheet,
Calculate the monthly payment of the first period. (5 pts)
Complete the amortization table of the first six years. (10 pts)
Calculate the starting balance and monthly payment of the second period. (5 pts)
Complete the amortization table of the second period. (10 pts)
Answer:
Since, John has paid $ 80,000 after 6 years and also the terms of mortgage are changing after 6 years, First Period is taken to be for 6 years.
The Second period shall be for 6 years as Jofn wants to pay off the mortgage in another 6 years.
a. Monthly payment for First Period:
Monthly Payment is calculated using the following formula in Spreadsheet:
=PMT(rate,nper,pv)
Where, Rate = 5%/12 (since 5% is APR and interest is compounded
monthly)
nper = 30*12 ( 30 years * 12 months each)
pv= $ 234,000 (Mortgage Amount)
Putting these values in spreadsheet in the above formula, we get the monthly payment for first period = $1256.16
b. Amortisation Table for first six years:
Since the interest is compounded monthly, Monthly Amortisation Table is prepared:
Period | Opening Balance | Interest | Payment | Principal Paid | Closing Balance |
1 | 234,000.00 | 975.00 | 1,256.16 | 281.16 | 233,718.84 |
2 | 233,718.84 | 973.83 | 1,256.16 | 282.33 | 233,436.50 |
3 | 233,436.50 | 972.65 | 1,256.16 | 283.51 | 233,152.99 |
4 | 233,152.99 | 971.47 | 1,256.16 | 284.69 | 232,868.30 |
5 | 232,868.30 | 970.28 | 1,256.16 | 285.88 | 232,582.42 |
6 | 232,582.42 | 969.09 | 1,256.16 | 287.07 | 232,295.35 |
7 | 232,295.35 | 967.90 | 1,256.16 | 288.27 | 232,007.09 |
8 | 232,007.09 | 966.70 | 1,256.16 | 289.47 | 231,717.62 |
9 | 231,717.62 | 965.49 | 1,256.16 | 290.67 | 231,426.95 |
10 | 231,426.95 | 964.28 | 1,256.16 | 291.88 | 231,135.07 |
11 | 231,135.07 | 963.06 | 1,256.16 | 293.10 | 230,841.97 |
12 | 230,841.97 | 961.84 | 1,256.16 | 294.32 | 230,547.65 |
13 | 230,547.65 | 960.62 | 1,256.16 | 295.55 | 230,252.10 |
14 | 230,252.10 | 959.38 | 1,256.16 | 296.78 | 229,955.32 |
15 | 229,955.32 | 958.15 | 1,256.16 | 298.02 | 229,657.30 |
16 | 229,657.30 | 956.91 | 1,256.16 | 299.26 | 229,358.05 |
17 | 229,358.05 | 955.66 | 1,256.16 | 300.50 | 229,057.54 |
18 | 229,057.54 | 954.41 | 1,256.16 | 301.76 | 228,755.79 |
19 | 228,755.79 | 953.15 | 1,256.16 | 303.01 | 228,452.77 |
20 | 228,452.77 | 951.89 | 1,256.16 | 304.28 | 228,148.50 |
21 | 228,148.50 | 950.62 | 1,256.16 | 305.54 | 227,842.95 |
22 | 227,842.95 | 949.35 | 1,256.16 | 306.82 | 227,536.14 |
23 | 227,536.14 | 948.07 | 1,256.16 | 308.10 | 227,228.04 |
24 | 227,228.04 | 946.78 | 1,256.16 | 309.38 | 226,918.66 |
25 | 226,918.66 | 945.49 | 1,256.16 | 310.67 | 226,607.99 |
26 | 226,607.99 | 944.20 | 1,256.16 | 311.96 | 226,296.03 |
27 | 226,296.03 | 942.90 | 1,256.16 | 313.26 | 225,982.77 |
28 | 225,982.77 | 941.59 | 1,256.16 | 314.57 | 225,668.20 |
29 | 225,668.20 | 940.28 | 1,256.16 | 315.88 | 225,352.32 |
30 | 225,352.32 | 938.97 | 1,256.16 | 317.19 | 225,035.13 |
31 | 225,035.13 | 937.65 | 1,256.16 | 318.52 | 224,716.61 |
32 | 224,716.61 | 936.32 | 1,256.16 | 319.84 | 224,396.77 |
33 | 224,396.77 | 934.99 | 1,256.16 | 321.18 | 224,075.59 |
34 | 224,075.59 | 933.65 | 1,256.16 | 322.51 | 223,753.08 |
35 | 223,753.08 | 932.30 | 1,256.16 | 323.86 | 223,429.22 |
36 | 223,429.22 | 930.96 | 1,256.16 | 325.21 | 223,104.01 |
37 | 223,104.01 | 929.60 | 1,256.16 | 326.56 | 222,777.45 |
38 | 222,777.45 | 928.24 | 1,256.16 | 327.92 | 222,449.53 |
39 | 222,449.53 | 926.87 | 1,256.16 | 329.29 | 222,120.24 |
40 | 222,120.24 | 925.50 | 1,256.16 | 330.66 | 221,789.57 |
41 | 221,789.57 | 924.12 | 1,256.16 | 332.04 | 221,457.54 |
42 | 221,457.54 | 922.74 | 1,256.16 | 333.42 | 221,124.11 |
43 | 221,124.11 | 921.35 | 1,256.16 | 334.81 | 220,789.30 |
44 | 220,789.30 | 919.96 | 1,256.16 | 336.21 | 220,453.09 |
45 | 220,453.09 | 918.55 | 1,256.16 | 337.61 | 220,115.48 |
46 | 220,115.48 | 917.15 | 1,256.16 | 339.01 | 219,776.47 |
47 | 219,776.47 | 915.74 | 1,256.16 | 340.43 | 219,436.04 |
48 | 219,436.04 | 914.32 | 1,256.16 | 341.85 | 219,094.20 |
49 | 219,094.20 | 912.89 | 1,256.16 | 343.27 | 218,750.93 |
50 | 218,750.93 | 911.46 | 1,256.16 | 344.70 | 218,406.23 |
51 | 218,406.23 | 910.03 | 1,256.16 | 346.14 | 218,060.09 |
52 | 218,060.09 | 908.58 | 1,256.16 | 347.58 | 217,712.51 |
53 | 217,712.51 | 907.14 | 1,256.16 | 349.03 | 217,363.48 |
54 | 217,363.48 | 905.68 | 1,256.16 | 350.48 | 217,013.00 |
55 | 217,013.00 | 904.22 | 1,256.16 | 351.94 | 216,661.06 |
56 | 216,661.06 | 902.75 | 1,256.16 | 353.41 | 216,307.65 |
57 | 216,307.65 | 901.28 | 1,256.16 | 354.88 | 215,952.77 |
58 | 215,952.77 | 899.80 | 1,256.16 | 356.36 | 215,596.41 |
59 | 215,596.41 | 898.32 | 1,256.16 | 357.84 | 215,238.57 |
60 | 215,238.57 | 896.83 | 1,256.16 | 359.34 | 214,879.23 |
61 | 214,879.23 | 895.33 | 1,256.16 | 360.83 | 214,518.40 |
62 | 214,518.40 | 893.83 | 1,256.16 | 362.34 | 214,156.06 |
63 | 214,156.06 | 892.32 | 1,256.16 | 363.85 | 213,792.22 |
64 | 213,792.22 | 890.80 | 1,256.16 | 365.36 | 213,426.86 |
65 | 213,426.86 | 889.28 | 1,256.16 | 366.88 | 213,059.97 |
66 | 213,059.97 | 887.75 | 1,256.16 | 368.41 | 212,691.56 |
67 | 212,691.56 | 886.21 | 1,256.16 | 369.95 | 212,321.61 |
68 | 212,321.61 | 884.67 | 1,256.16 | 371.49 | 211,950.12 |
69 | 211,950.12 | 883.13 | 1,256.16 | 373.04 | 211,577.09 |
70 | 211,577.09 | 881.57 | 1,256.16 | 374.59 | 211,202.50 |
71 | 211,202.50 | 880.01 | 1,256.16 | 376.15 | 210,826.34 |
72 | 210,826.34 | 878.44 | 81,256.16 | 80,377.72 | 130,448.62 |
Since, it is mentioned in question that John has paid $ 80,000 after 6 years, $80,000 is added to the last payment.
c. Starting Balance of Second Period= $ 130,448.62 (as coming in the closing balance of first period)
Monthly Payment of Second Period
Since it is mentioned in the question that lender has reduced the interest rate, the new rate of Interest assumed is 4.5% per annum. (APR = 4.5%)
Monthly Payment =PMT(rate,nper,pv)
Where, Rate = 4.5%/12 (since 4.5% is APR and interest is compounded
monthly)
nper = 6*12 ( 6 years * 12 months each)
pv= $ 130,448.62 (Balance Mortgage Amount)
Putting these values in spreadsheet in the above formula, we get the monthly payment for Second Period = $2070.75
d. Amortisation Table for Second Period:
Since the interest is compounded monthly, Monthly Amortisation Table is prepared:
Period | Opening Balance | Interest | Payment | Principal Paid | Closing Balance |
1 | 130,448.62 | 489.18 | 2,070.75 | 1,581.56 | 128,867.06 |
2 | 128,867.06 | 483.25 | 2,070.75 | 1,587.49 | 127,279.57 |
3 | 127,279.57 | 477.30 | 2,070.75 | 1,593.45 | 125,686.12 |
4 | 125,686.12 | 471.32 | 2,070.75 | 1,599.42 | 124,086.70 |
5 | 124,086.70 | 465.33 | 2,070.75 | 1,605.42 | 122,481.28 |
6 | 122,481.28 | 459.30 | 2,070.75 | 1,611.44 | 120,869.84 |
7 | 120,869.84 | 453.26 | 2,070.75 | 1,617.48 | 119,252.35 |
8 | 119,252.35 | 447.20 | 2,070.75 | 1,623.55 | 117,628.80 |
9 | 117,628.80 | 441.11 | 2,070.75 | 1,629.64 | 115,999.17 |
10 | 115,999.17 | 435.00 | 2,070.75 | 1,635.75 | 114,363.42 |
11 | 114,363.42 | 428.86 | 2,070.75 | 1,641.88 | 112,721.54 |
12 | 112,721.54 | 422.71 | 2,070.75 | 1,648.04 | 111,073.50 |
13 | 111,073.50 | 416.53 | 2,070.75 | 1,654.22 | 109,419.28 |
14 | 109,419.28 | 410.32 | 2,070.75 | 1,660.42 | 107,758.85 |
15 | 107,758.85 | 404.10 | 2,070.75 | 1,666.65 | 106,092.20 |
16 | 106,092.20 | 397.85 | 2,070.75 | 1,672.90 | 104,419.30 |
17 | 104,419.30 | 391.57 | 2,070.75 | 1,679.17 | 102,740.13 |
18 | 102,740.13 | 385.28 | 2,070.75 | 1,685.47 | 101,054.66 |
19 | 101,054.66 | 378.95 | 2,070.75 | 1,691.79 | 99,362.87 |
20 | 99,362.87 | 372.61 | 2,070.75 | 1,698.13 | 97,664.74 |
21 | 97,664.74 | 366.24 | 2,070.75 | 1,704.50 | 95,960.23 |
22 | 95,960.23 | 359.85 | 2,070.75 | 1,710.89 | 94,249.34 |
23 | 94,249.34 | 353.44 | 2,070.75 | 1,717.31 | 92,532.03 |
24 | 92,532.03 | 347.00 | 2,070.75 | 1,723.75 | 90,808.28 |
25 | 90,808.28 | 340.53 | 2,070.75 | 1,730.21 | 89,078.06 |
26 | 89,078.06 | 334.04 | 2,070.75 | 1,736.70 | 87,341.36 |
27 | 87,341.36 | 327.53 | 2,070.75 | 1,743.22 | 85,598.15 |
28 | 85,598.15 | 320.99 | 2,070.75 | 1,749.75 | 83,848.39 |
29 | 83,848.39 | 314.43 | 2,070.75 | 1,756.31 | 82,092.08 |
30 | 82,092.08 | 307.85 | 2,070.75 | 1,762.90 | 80,329.18 |
31 | 80,329.18 | 301.23 | 2,070.75 | 1,769.51 | 78,559.67 |
32 | 78,559.67 | 294.60 | 2,070.75 | 1,776.15 | 76,783.52 |
33 | 76,783.52 | 287.94 | 2,070.75 | 1,782.81 | 75,000.72 |
34 | 75,000.72 | 281.25 | 2,070.75 | 1,789.49 | 73,211.22 |
35 | 73,211.22 | 274.54 | 2,070.75 | 1,796.20 | 71,415.02 |
36 | 71,415.02 | 267.81 | 2,070.75 | 1,802.94 | 69,612.08 |
37 | 69,612.08 | 261.05 | 2,070.75 | 1,809.70 | 67,802.38 |
38 | 67,802.38 | 254.26 | 2,070.75 | 1,816.49 | 65,985.89 |
39 | 65,985.89 | 247.45 | 2,070.75 | 1,823.30 | 64,162.60 |
40 | 64,162.60 | 240.61 | 2,070.75 | 1,830.14 | 62,332.46 |
41 | 62,332.46 | 233.75 | 2,070.75 | 1,837.00 | 60,495.46 |
42 | 60,495.46 | 226.86 | 2,070.75 | 1,843.89 | 58,651.58 |
43 | 58,651.58 | 219.94 | 2,070.75 | 1,850.80 | 56,800.77 |
44 | 56,800.77 | 213.00 | 2,070.75 | 1,857.74 | 54,943.03 |
45 | 54,943.03 | 206.04 | 2,070.75 | 1,864.71 | 53,078.32 |
46 | 53,078.32 | 199.04 | 2,070.75 | 1,871.70 | 51,206.62 |
47 | 51,206.62 | 192.02 | 2,070.75 | 1,878.72 | 49,327.90 |
48 | 49,327.90 | 184.98 | 2,070.75 | 1,885.77 | 47,442.13 |
49 | 47,442.13 | 177.91 | 2,070.75 | 1,892.84 | 45,549.30 |
50 | 45,549.30 | 170.81 | 2,070.75 | 1,899.94 | 43,649.36 |
51 | 43,649.36 | 163.69 | 2,070.75 | 1,907.06 | 41,742.30 |
52 | 41,742.30 | 156.53 | 2,070.75 | 1,914.21 | 39,828.09 |
53 | 39,828.09 | 149.36 | 2,070.75 | 1,921.39 | 37,906.70 |
54 | 37,906.70 | 142.15 | 2,070.75 | 1,928.60 | 35,978.10 |
55 | 35,978.10 | 134.92 | 2,070.75 | 1,935.83 | 34,042.28 |
56 | 34,042.28 | 127.66 | 2,070.75 | 1,943.09 | 32,099.19 |
57 | 32,099.19 | 120.37 | 2,070.75 | 1,950.37 | 30,148.82 |
58 | 30,148.82 | 113.06 | 2,070.75 | 1,957.69 | 28,191.13 |
59 | 28,191.13 | 105.72 | 2,070.75 | 1,965.03 | 26,226.10 |
60 | 26,226.10 | 98.35 | 2,070.75 | 1,972.40 | 24,253.70 |
61 | 24,253.70 | 90.95 | 2,070.75 | 1,979.79 | 22,273.91 |
62 | 22,273.91 | 83.53 | 2,070.75 | 1,987.22 | 20,286.69 |
63 | 20,286.69 | 76.08 | 2,070.75 | 1,994.67 | 18,292.02 |
64 | 18,292.02 | 68.60 | 2,070.75 | 2,002.15 | 16,289.87 |
65 | 16,289.87 | 61.09 | 2,070.75 | 2,009.66 | 14,280.21 |
66 | 14,280.21 | 53.55 | 2,070.75 | 2,017.19 | 12,263.02 |
67 | 12,263.02 | 45.99 | 2,070.75 | 2,024.76 | 10,238.26 |
68 | 10,238.26 | 38.39 | 2,070.75 | 2,032.35 | 8,205.91 |
69 | 8,205.91 | 30.77 | 2,070.75 | 2,039.97 | 6,165.93 |
70 | 6,165.93 | 23.12 | 2,070.75 | 2,047.62 | 4,118.31 |
71 | 4,118.31 | 15.44 | 2,070.75 | 2,055.30 | 2,063.01 |
72 | 2,063.01 | 7.74 | 2,070.75 | 2,063.01 | 0.00 |
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