In: Finance
Question 9:
You have selected a $35,000 delivery van for your business. The auto dealership is offering you two financing options. Loan #1 is a four-year loan, paid monthly, at 6.0%. Loan #2 is a five-year loan, paid monthly at 7.2%. How much more interest will Loan #2 cost over the time of the loan than Loan #1?
Loan 1
| Monthly rate(M)= | yearly rate/12= | 0.50% | Monthly payment= | 821.98 | |
| Month | Beginning balance (A) | Monthly payment | Interest = M*A | Principal paid | Ending balance | 
| 1 | 35000.00 | 821.98 | 175.00 | 646.98 | 34353.02 | 
| 2 | 34353.02 | 821.98 | 171.77 | 650.21 | 33702.81 | 
| 3 | 33702.81 | 821.98 | 168.51 | 653.46 | 33049.35 | 
| 4 | 33049.35 | 821.98 | 165.25 | 656.73 | 32392.62 | 
| 5 | 32392.62 | 821.98 | 161.96 | 660.01 | 31732.61 | 
| 6 | 31732.61 | 821.98 | 158.66 | 663.31 | 31069.30 | 
| 7 | 31069.30 | 821.98 | 155.35 | 666.63 | 30402.67 | 
| 8 | 30402.67 | 821.98 | 152.01 | 669.96 | 29732.70 | 
| 9 | 29732.70 | 821.98 | 148.66 | 673.31 | 29059.39 | 
| 10 | 29059.39 | 821.98 | 145.30 | 676.68 | 28382.71 | 
| 11 | 28382.71 | 821.98 | 141.91 | 680.06 | 27702.65 | 
| 12 | 27702.65 | 821.98 | 138.51 | 683.46 | 27019.19 | 
| 13 | 27019.19 | 821.98 | 135.10 | 686.88 | 26332.31 | 
| 14 | 26332.31 | 821.98 | 131.66 | 690.31 | 25641.99 | 
| 15 | 25641.99 | 821.98 | 128.21 | 693.77 | 24948.23 | 
| 16 | 24948.23 | 821.98 | 124.74 | 697.23 | 24250.99 | 
| 17 | 24250.99 | 821.98 | 121.25 | 700.72 | 23550.27 | 
| 18 | 23550.27 | 821.98 | 117.75 | 704.22 | 22846.05 | 
| 19 | 22846.05 | 821.98 | 114.23 | 707.75 | 22138.30 | 
| 20 | 22138.30 | 821.98 | 110.69 | 711.28 | 21427.02 | 
| 21 | 21427.02 | 821.98 | 107.14 | 714.84 | 20712.17 | 
| 22 | 20712.17 | 821.98 | 103.56 | 718.42 | 19993.76 | 
| 23 | 19993.76 | 821.98 | 99.97 | 722.01 | 19271.75 | 
| 24 | 19271.75 | 821.98 | 96.36 | 725.62 | 18546.13 | 
| 25 | 18546.13 | 821.98 | 92.73 | 729.25 | 17816.89 | 
| 26 | 17816.89 | 821.98 | 89.08 | 732.89 | 17084.00 | 
| 27 | 17084.00 | 821.98 | 85.42 | 736.56 | 16347.44 | 
| 28 | 16347.44 | 821.98 | 81.74 | 740.24 | 15607.20 | 
| 29 | 15607.20 | 821.98 | 78.04 | 743.94 | 14863.26 | 
| 30 | 14863.26 | 821.98 | 74.32 | 747.66 | 14115.60 | 
| 31 | 14115.60 | 821.98 | 70.58 | 751.40 | 13364.21 | 
| 32 | 13364.21 | 821.98 | 66.82 | 755.15 | 12609.05 | 
| 33 | 12609.05 | 821.98 | 63.05 | 758.93 | 11850.12 | 
| 34 | 11850.12 | 821.98 | 59.25 | 762.73 | 11087.39 | 
| 35 | 11087.39 | 821.98 | 55.44 | 766.54 | 10320.86 | 
| 36 | 10320.86 | 821.98 | 51.60 | 770.37 | 9550.48 | 
| 37 | 9550.48 | 821.98 | 47.75 | 774.22 | 8776.26 | 
| 38 | 8776.26 | 821.98 | 43.88 | 778.09 | 7998.17 | 
| 39 | 7998.17 | 821.98 | 39.99 | 781.99 | 7216.18 | 
| 40 | 7216.18 | 821.98 | 36.08 | 785.90 | 6430.28 | 
| 41 | 6430.28 | 821.98 | 32.15 | 789.82 | 5640.46 | 
| 42 | 5640.46 | 821.98 | 28.20 | 793.77 | 4846.69 | 
| 43 | 4846.69 | 821.98 | 24.23 | 797.74 | 4048.94 | 
| 44 | 4048.94 | 821.98 | 20.24 | 801.73 | 3247.21 | 
| 45 | 3247.21 | 821.98 | 16.24 | 805.74 | 2441.47 | 
| 46 | 2441.47 | 821.98 | 12.21 | 809.77 | 1631.70 | 
| 47 | 1631.70 | 821.98 | 8.16 | 813.82 | 817.89 | 
| 48 | 817.89 | 821.98 | 4.09 | 817.89 | 0.00 | 
| Where | 
| Interest paid = Beginning balance * Monthly interest rate | 
| Principal = Monthly payment – interest paid | 
| Ending balance = beginning balance – principal paid | 
| Beginning balance = previous Month ending balance | 
| total payment=Monthly payment*number of Month | 
| =821.976*48 | 
| =39454.8479999999 | 
| Total interest paid= total payment-period 1 beginning balance | 
| =39454.8479999999-35000 | 
| =4454.84799999999 | 
Loan 2
| Monthly rate(M)= | yearly rate/12= | 0.60% | Monthly payment= | 696.35 | |
| Month | Beginning balance (A) | Monthly payment | Interest = M*A | Principal paid | Ending balance | 
| 1 | 35000.00 | 696.35 | 210.00 | 486.35 | 34513.65 | 
| 2 | 34513.65 | 696.35 | 207.08 | 489.27 | 34024.38 | 
| 3 | 34024.38 | 696.35 | 204.15 | 492.20 | 33532.18 | 
| 4 | 33532.18 | 696.35 | 201.19 | 495.16 | 33037.02 | 
| 5 | 33037.02 | 696.35 | 198.22 | 498.13 | 32538.90 | 
| 6 | 32538.90 | 696.35 | 195.23 | 501.12 | 32037.78 | 
| 7 | 32037.78 | 696.35 | 192.23 | 504.12 | 31533.66 | 
| 8 | 31533.66 | 696.35 | 189.20 | 507.15 | 31026.51 | 
| 9 | 31026.51 | 696.35 | 186.16 | 510.19 | 30516.32 | 
| 10 | 30516.32 | 696.35 | 183.10 | 513.25 | 30003.07 | 
| 11 | 30003.07 | 696.35 | 180.02 | 516.33 | 29486.74 | 
| 12 | 29486.74 | 696.35 | 176.92 | 519.43 | 28967.31 | 
| 13 | 28967.31 | 696.35 | 173.80 | 522.55 | 28444.76 | 
| 14 | 28444.76 | 696.35 | 170.67 | 525.68 | 27919.08 | 
| 15 | 27919.08 | 696.35 | 167.51 | 528.83 | 27390.25 | 
| 16 | 27390.25 | 696.35 | 164.34 | 532.01 | 26858.24 | 
| 17 | 26858.24 | 696.35 | 161.15 | 535.20 | 26323.04 | 
| 18 | 26323.04 | 696.35 | 157.94 | 538.41 | 25784.63 | 
| 19 | 25784.63 | 696.35 | 154.71 | 541.64 | 25242.99 | 
| 20 | 25242.99 | 696.35 | 151.46 | 544.89 | 24698.10 | 
| 21 | 24698.10 | 696.35 | 148.19 | 548.16 | 24149.94 | 
| 22 | 24149.94 | 696.35 | 144.90 | 551.45 | 23598.49 | 
| 23 | 23598.49 | 696.35 | 141.59 | 554.76 | 23043.73 | 
| 24 | 23043.73 | 696.35 | 138.26 | 558.09 | 22485.64 | 
| 25 | 22485.64 | 696.35 | 134.91 | 561.44 | 21924.21 | 
| 26 | 21924.21 | 696.35 | 131.55 | 564.80 | 21359.40 | 
| 27 | 21359.40 | 696.35 | 128.16 | 568.19 | 20791.21 | 
| 28 | 20791.21 | 696.35 | 124.75 | 571.60 | 20219.61 | 
| 29 | 20219.61 | 696.35 | 121.32 | 575.03 | 19644.57 | 
| 30 | 19644.57 | 696.35 | 117.87 | 578.48 | 19066.09 | 
| 31 | 19066.09 | 696.35 | 114.40 | 581.95 | 18484.14 | 
| 32 | 18484.14 | 696.35 | 110.90 | 585.44 | 17898.70 | 
| 33 | 17898.70 | 696.35 | 107.39 | 588.96 | 17309.74 | 
| 34 | 17309.74 | 696.35 | 103.86 | 592.49 | 16717.25 | 
| 35 | 16717.25 | 696.35 | 100.30 | 596.05 | 16121.20 | 
| 36 | 16121.20 | 696.35 | 96.73 | 599.62 | 15521.58 | 
| 37 | 15521.58 | 696.35 | 93.13 | 603.22 | 14918.36 | 
| 38 | 14918.36 | 696.35 | 89.51 | 606.84 | 14311.52 | 
| 39 | 14311.52 | 696.35 | 85.87 | 610.48 | 13701.04 | 
| 40 | 13701.04 | 696.35 | 82.21 | 614.14 | 13086.90 | 
| 41 | 13086.90 | 696.35 | 78.52 | 617.83 | 12469.07 | 
| 42 | 12469.07 | 696.35 | 74.81 | 621.53 | 11847.53 | 
| 43 | 11847.53 | 696.35 | 71.09 | 625.26 | 11222.27 | 
| 44 | 11222.27 | 696.35 | 67.33 | 629.02 | 10593.25 | 
| 45 | 10593.25 | 696.35 | 63.56 | 632.79 | 9960.46 | 
| 46 | 9960.46 | 696.35 | 59.76 | 636.59 | 9323.88 | 
| 47 | 9323.88 | 696.35 | 55.94 | 640.41 | 8683.47 | 
| 48 | 8683.47 | 696.35 | 52.10 | 644.25 | 8039.22 | 
| 49 | 8039.22 | 696.35 | 48.24 | 648.11 | 7391.11 | 
| 50 | 7391.11 | 696.35 | 44.35 | 652.00 | 6739.11 | 
| 51 | 6739.11 | 696.35 | 40.43 | 655.91 | 6083.19 | 
| 52 | 6083.19 | 696.35 | 36.50 | 659.85 | 5423.34 | 
| 53 | 5423.34 | 696.35 | 32.54 | 663.81 | 4759.53 | 
| 54 | 4759.53 | 696.35 | 28.56 | 667.79 | 4091.74 | 
| 55 | 4091.74 | 696.35 | 24.55 | 671.80 | 3419.94 | 
| 56 | 3419.94 | 696.35 | 20.52 | 675.83 | 2744.11 | 
| 57 | 2744.11 | 696.35 | 16.46 | 679.88 | 2064.23 | 
| 58 | 2064.23 | 696.35 | 12.39 | 683.96 | 1380.26 | 
| 59 | 1380.26 | 696.35 | 8.28 | 688.07 | 692.20 | 
| 60 | 692.20 | 696.35 | 4.15 | 692.20 | 0.00 | 
| Where | 
| Interest paid = Beginning balance * Monthly interest rate | 
| Principal = Monthly payment – interest paid | 
| Ending balance = beginning balance – principal paid | 
| Beginning balance = previous Month ending balance | 
| total payment=Monthly payment*number of Month | 
| =696.3493*60 | 
| =41780.958 | 
| Total interest paid= total payment-period 1 beginning balance | 
| =41780.958-35000 | 
| =6780.958 | 
Additional interest on loan 2 = total interest on loan 2-total interest on Loan 1 = 6780.958-4454.8479=2326.11