Two years ago Abilia purchased a $14,000 car; she paid $2,500 down and borrowed the rest. She took a fixed-rate 60-month installment loan at a stated rate of 8.0% per year. Interest rates have fallen during the last two years and she can refinance her car by borrowing the amount she still owes on the car at a new fixed rate of 4% per year for 3 years. Should Abilia refinance her loan? How much will she save per month for the remainder of the loan life if she decides to refinance?
Interest rate per month = 8%/12 = 0.6666%
Loan = Purchase price - down payment = $14,000 - $2,500 = $11,500
Equated Monthly payment = Loan / PVAF(0.6666%, 60 months) = $11500 / 49.31843 = $233.18
REPAYMENT SCHEDULE
Month end | Opening Bal.(A) | Interest @0.66%(B) | Installment(C) | Principal paid(C-B)=D | Closing Bal.(A-D) |
1 | 11500.00 | 76.67 | 233.18 | 156.51 | 11343.49 |
2 | 11343.49 | 75.62 | 233.18 | 157.56 | 11185.93 |
3 | 11185.93 | 74.57 | 233.18 | 158.61 | 11027.32 |
4 | 11027.32 | 73.52 | 233.18 | 159.66 | 10867.66 |
5 | 10867.66 | 72.45 | 233.18 | 160.73 | 10706.93 |
6 | 10706.93 | 71.38 | 233.18 | 161.80 | 10545.13 |
7 | 10545.13 | 70.30 | 233.18 | 162.88 | 10382.25 |
8 | 10382.25 | 69.21 | 233.18 | 163.97 | 10218.28 |
9 | 10218.28 | 68.12 | 233.18 | 165.06 | 10053.23 |
10 | 10053.23 | 67.02 | 233.18 | 166.16 | 9887.07 |
11 | 9887.07 | 65.91 | 233.18 | 167.27 | 9719.80 |
12 | 9719.80 | 64.80 | 233.18 | 168.38 | 9551.42 |
13 | 9551.42 | 63.68 | 233.18 | 169.50 | 9381.92 |
14 | 9381.92 | 62.55 | 233.18 | 170.63 | 9211.28 |
15 | 9211.28 | 61.41 | 233.18 | 171.77 | 9039.51 |
16 | 9039.51 | 60.26 | 233.18 | 172.92 | 8866.59 |
17 | 8866.59 | 59.11 | 233.18 | 174.07 | 8692.53 |
18 | 8692.53 | 57.95 | 233.18 | 175.23 | 8517.30 |
19 | 8517.30 | 56.78 | 233.18 | 176.40 | 8340.90 |
20 | 8340.90 | 55.61 | 233.18 | 177.57 | 8163.32 |
21 | 8163.32 | 54.42 | 233.18 | 178.76 | 7984.57 |
22 | 7984.57 | 53.23 | 233.18 | 179.95 | 7804.62 |
23 | 7804.62 | 52.03 | 233.18 | 181.15 | 7623.47 |
24 | 7623.47 | 50.82 | 233.18 | 182.36 | 7441.11 |
25 | 7441.11 | 49.61 | 233.18 | 183.57 | 7257.54 |
26 | 7257.54 | 48.38 | 233.18 | 184.80 | 7072.74 |
27 | 7072.74 | 47.15 | 233.18 | 186.03 | 6886.71 |
28 | 6886.71 | 45.91 | 233.18 | 187.27 | 6699.44 |
29 | 6699.44 | 44.66 | 233.18 | 188.52 | 6510.93 |
30 | 6510.93 | 43.41 | 233.18 | 189.77 | 6321.15 |
31 | 6321.15 | 42.14 | 233.18 | 191.04 | 6130.11 |
32 | 6130.11 | 40.87 | 233.18 | 192.31 | 5937.80 |
33 | 5937.80 | 39.59 | 233.18 | 193.59 | 5744.21 |
34 | 5744.21 | 38.29 | 233.18 | 194.89 | 5549.32 |
35 | 5549.32 | 37.00 | 233.18 | 196.18 | 5353.14 |
36 | 5353.14 | 35.69 | 233.18 | 197.49 | 5155.64 |
Month end | Opening Bal.(A) | Interest @0.66%(B) | Installment(C) | Principal paid(C-B)=D | Closing Bal.(A-D) |
37 | 5155.64 | 34.37 | 233.18 | 198.81 | 4956.84 |
38 | 4956.84 | 33.05 | 233.18 | 200.13 | 4756.70 |
39 | 4756.70 | 31.71 | 233.18 | 201.47 | 4555.23 |
40 | 4555.23 | 30.37 | 233.18 | 202.81 | 4352.42 |
41 | 4352.42 | 29.02 | 233.18 | 204.16 | 4148.26 |
42 | 4148.26 | 27.66 | 233.18 | 205.52 | 3942.73 |
43 | 3942.73 | 26.28 | 233.18 | 206.90 | 3735.84 |
44 | 3735.84 | 24.91 | 233.18 | 208.27 | 3527.56 |
45 | 3527.56 | 23.52 | 233.18 | 209.66 | 3317.90 |
46 | 3317.90 | 22.12 | 233.18 | 211.06 | 3106.84 |
47 | 3106.84 | 20.71 | 233.18 | 212.47 | 2894.37 |
48 | 2894.37 | 19.30 | 233.18 | 213.88 | 2680.49 |
49 | 2680.49 | 17.87 | 233.18 | 215.31 | 2465.18 |
50 | 2465.18 | 16.43 | 233.18 | 216.75 | 2248.43 |
51 | 2248.43 | 14.99 | 233.18 | 218.19 | 2030.24 |
52 | 2030.24 | 13.53 | 233.18 | 219.65 | 1810.60 |
53 | 1810.60 | 12.07 | 233.18 | 221.11 | 1589.49 |
54 | 1589.49 | 10.60 | 233.18 | 222.58 | 1366.90 |
55 | 1366.90 | 9.11 | 233.18 | 224.07 | 1142.84 |
56 | 1142.84 | 7.62 | 233.18 | 225.56 | 917.27 |
57 | 917.27 | 6.12 | 233.18 | 227.06 | 690.21 |
58 | 690.21 | 4.60 | 233.18 | 228.58 | 461.63 |
59 | 461.63 | 3.08 | 233.18 | 230.10 | 231.53 |
60 | 231.53 | 1.54 | 233.18 | 231.64 | -0.11 |
Total | 440.57 |
From above we can see at the end of 3 years or 36 months, loan amount remaining = $5155.64
New Rate per month = 4%/12 = 0.3333%
Equated Monthly installment now = $5155.64 / PVAF(0.33%, 36 months) = $5155.64 / 33.87077 = $152.22
REPAYMENT SCHEDULE AFTER RE FIANANCE
Month end | Opening Bal.(A) | Interest @0.33%(B) | Installment(C) | Principal paid(C-B)=D | Closing Bal.(A-D) |
1 | 5155.64 | 17.19 | 152.22 | 135.03 | 5020.61 |
2 | 5020.61 | 16.74 | 152.22 | 135.48 | 4885.13 |
3 | 4885.13 | 16.28 | 152.22 | 135.94 | 4749.19 |
4 | 4749.19 | 15.83 | 152.22 | 136.39 | 4612.80 |
5 | 4612.80 | 15.38 | 152.22 | 136.84 | 4475.96 |
6 | 4475.96 | 14.92 | 152.22 | 137.30 | 4338.66 |
7 | 4338.66 | 14.46 | 152.22 | 137.76 | 4200.90 |
8 | 4200.90 | 14.00 | 152.22 | 138.22 | 4062.68 |
9 | 4062.68 | 13.54 | 152.22 | 138.68 | 3924.00 |
10 | 3924.00 | 13.08 | 152.22 | 139.14 | 3784.86 |
11 | 3784.86 | 12.62 | 152.22 | 139.60 | 3645.26 |
12 | 3645.26 | 12.15 | 152.22 | 140.07 | 3505.19 |
13 | 3505.19 | 11.68 | 152.22 | 140.54 | 3364.65 |
14 | 3364.65 | 11.22 | 152.22 | 141.00 | 3223.65 |
15 | 3223.65 | 10.75 | 152.22 | 141.47 | 3082.18 |
16 | 3082.18 | 10.27 | 152.22 | 141.95 | 2940.23 |
17 | 2940.23 | 9.80 | 152.22 | 142.42 | 2797.81 |
18 | 2797.81 | 9.33 | 152.22 | 142.89 | 2654.92 |
19 | 2654.92 | 8.85 | 152.22 | 143.37 | 2511.55 |
20 | 2511.55 | 8.37 | 152.22 | 143.85 | 2367.70 |
21 | 2367.70 | 7.89 | 152.22 | 144.33 | 2223.37 |
22 | 2223.37 | 7.41 | 152.22 | 144.81 | 2078.56 |
23 | 2078.56 | 6.93 | 152.22 | 145.29 | 1933.27 |
24 | 1933.27 | 6.44 | 152.22 | 145.78 | 1787.49 |
25 | 1787.49 | 5.96 | 152.22 | 146.26 | 1641.23 |
26 | 1641.23 | 5.47 | 152.22 | 146.75 | 1494.48 |
27 | 1494.48 | 4.98 | 152.22 | 147.24 | 1347.24 |
28 | 1347.24 | 4.49 | 152.22 | 147.73 | 1199.52 |
29 | 1199.52 | 4.00 | 152.22 | 148.22 | 1051.29 |
30 | 1051.29 | 3.50 | 152.22 | 148.72 | 902.58 |
31 | 902.58 | 3.01 | 152.22 | 149.21 | 753.37 |
32 | 753.37 | 2.51 | 152.22 | 149.71 | 603.66 |
33 | 603.66 | 2.01 | 152.22 | 150.21 | 453.45 |
34 | 453.45 | 1.51 | 152.22 | 150.71 | 302.74 |
35 | 302.74 | 1.01 | 152.22 | 151.21 | 151.53 |
36 | 151.53 | 0.51 | 152.22 | 151.71 | -0.18 |
Total | 324.09 |
So now from above Schedules, we can see Total Saving in interest = $440.57 - $324.09 = $ 116.48
Saving per month after refinance for the remainder of loan life = $116.48 / 36 = $3.235
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