Question

In: Finance

You take out a 25-year mortgage for $300,000 to buy a new house. What will your...

You take out a 25-year mortgage for $300,000 to buy a new house. What will your monthly payments be if the interest rate on your mortgage is 8 percent? Now, calculate the portion of the 48th monthly payment that goes toward interest and principal.

Complete the steps below using cell references to given data or previous calculations. In some cases, a simple cell reference is all you need. To copy/paste a formula across a row or down a column, an absolute cell reference or a mixed cell reference may be preferred. If a specific Excel function is to be used, the directions will specify the use of that function. Do not type in numerical data into a cell or function. Instead, make a reference to the cell in which the data is found. Make your computations only in the green cells highlighted below. In all cases, unless otherwise directed, use the earliest appearance of the data in your formulas, usually the Given Data section.

Given Data:
Loan Amount 300,000
Rate of Interest 8.00%
Number of years 25
Month # for portion of monthly payment 48
Months in a year 12
Data I must complete:
Number of Periods 300
Monthly Interest Rate .69%
Payment
Interest amount in the 48th payment
Principal amount in the 48th payment

I filled in the number of periods and Monthly interest rate and believe them to be correct. How am I supposed to get the Payment (D14) amount with knowing the FV? What would be the PMT function?

Solutions

Expert Solution

There are two to do this, use a table in excel or make use of excel formulas of PMT to calculate Equal installments

First we calculate, the installment amount of loan using PMT function.

Here Rate = 8% /12 (As monthly payment, so monthly rate)

NPER = 25 years = 300 Months

PV = Loan Amount at start = $300000

FV =0

Type = 0 (EMI paid at the end of month)

Thus PMT = PMT(8%/12,300,300000,0,0) = - $2315.45 (The negative sign just indicates a cash outflow, in installment payments)

1. Using the FV function - We will calculate the FV (Outstanding loan in the month 47 & 48 to find the principal and interest paid in Month 48)

So we use FV function, where rate = 8%/12, NPER = 47, PMT = -2315.45, PV = 300000, TYpe = 0)

Loan outstanding in month 47 = FV in month 47 = FV(8%/12,47,-2315.45,300000,0) = $282,655.50

Loan outstanding in month 48 = FV in month 48 = FV(8%/12,48,-2315.45,300000,0) = $282,224.42

Outstanding loan has come down by (282655.50 - 282224.42) = $431.08

This $431.08 is the principal component of the Installment of $2315.45 (The amount paid every month, a part goes in principal payment and other in Interest payment)

Interest component of 48th installment = $2315.45 - $431.08 = $1884.37

Principal component of 48th installment = $431.08

2. Alternatively, Using the excel table  

One can see that loan outstanding at end =0,

Principal paid in 48th installment = 431.08 & Interest payment = 1884.37

You can replicate the table in excel (by creating a new sheet and using the below mentioned formulas - 1. Screen shot , 2. Formula table, 3. The output of data

Loan amount 300000
Rate of Interest =8%/12 Monthly rate
Period of loan 300 (25 years = 300 months)
FV 0
Type 0
PMT =PMT(B2,300,300000,0,0)
Month Opening Balance (A) Interest B = A x 8%/12 EMI = 2315.45 = C Principal
(D) = C - B
Closing balance
(E = A + B - C)
1 =300000 =B8*8%/12 =-B6 =D8-C8 =B8+C8-D8
=A8+1 =F8 =B9*8%/12 =D8 =D9-C9 =B9+C9-D9
=A9+1 =F9 =B10*8%/12 =D9 =D10-C10 =B10+C10-D10
=A10+1 =F10 =B11*8%/12 =D10 =D11-C11 =B11+C11-D11
=A11+1 =F11 =B12*8%/12 =D11 =D12-C12 =B12+C12-D12
=A12+1 =F12 =B13*8%/12 =D12 =D13-C13 =B13+C13-D13
=A13+1 =F13 =B14*8%/12 =D13 =D14-C14 =B14+C14-D14
=A14+1 =F14 =B15*8%/12 =D14 =D15-C15 =B15+C15-D15
=A15+1 =F15 =B16*8%/12 =D15 =D16-C16 =B16+C16-D16
=A16+1 =F16 =B17*8%/12 =D16 =D17-C17 =B17+C17-D17
=A17+1 =F17 =B18*8%/12 =D17 =D18-C18 =B18+C18-D18
Loan amount 300000
Rate of Interest 0.67% Monthly rate
Period of loan 300 (25 years = 300 months)
FV 0
Type 0
PMT ($2,315.45)
Month Opening Balance (A) Interest B = A x 8%/12 EMI = 2315.45 = C Principal
(D) = C - B
Closing balance
(E = A + B - C)
1 $300,000.00 $2,000.00 $2,315.45 $315.45 $299,684.55
2 $299,684.55 $1,997.90 $2,315.45 $317.55 $299,367.00
3 $299,367.00 $1,995.78 $2,315.45 $319.67 $299,047.33
4 $299,047.33 $1,993.65 $2,315.45 $321.80 $298,725.53
5 $298,725.53 $1,991.50 $2,315.45 $323.95 $298,401.59
6 $298,401.59 $1,989.34 $2,315.45 $326.10 $298,075.48
7 $298,075.48 $1,987.17 $2,315.45 $328.28 $297,747.20
8 $297,747.20 $1,984.98 $2,315.45 $330.47 $297,416.74
9 $297,416.74 $1,982.78 $2,315.45 $332.67 $297,084.06
10 $297,084.06 $1,980.56 $2,315.45 $334.89 $296,749.18
11 $296,749.18 $1,978.33 $2,315.45 $337.12 $296,412.06
12 $296,412.06 $1,976.08 $2,315.45 $339.37 $296,072.69
13 $296,072.69 $1,973.82 $2,315.45 $341.63 $295,731.06
14 $295,731.06 $1,971.54 $2,315.45 $343.91 $295,387.15
15 $295,387.15 $1,969.25 $2,315.45 $346.20 $295,040.95
16 $295,040.95 $1,966.94 $2,315.45 $348.51 $294,692.44
17 $294,692.44 $1,964.62 $2,315.45 $350.83 $294,341.61
18 $294,341.61 $1,962.28 $2,315.45 $353.17 $293,988.43
19 $293,988.43 $1,959.92 $2,315.45 $355.53 $293,632.91
20 $293,632.91 $1,957.55 $2,315.45 $357.90 $293,275.01
21 $293,275.01 $1,955.17 $2,315.45 $360.28 $292,914.73
22 $292,914.73 $1,952.76 $2,315.45 $362.68 $292,552.05
23 $292,552.05 $1,950.35 $2,315.45 $365.10 $292,186.95
24 $292,186.95 $1,947.91 $2,315.45 $367.54 $291,819.41
25 $291,819.41 $1,945.46 $2,315.45 $369.99 $291,449.42
26 $291,449.42 $1,943.00 $2,315.45 $372.45 $291,076.97
27 $291,076.97 $1,940.51 $2,315.45 $374.94 $290,702.04
28 $290,702.04 $1,938.01 $2,315.45 $377.44 $290,324.60
29 $290,324.60 $1,935.50 $2,315.45 $379.95 $289,944.65
30 $289,944.65 $1,932.96 $2,315.45 $382.48 $289,562.17
31 $289,562.17 $1,930.41 $2,315.45 $385.03 $289,177.13
32 $289,177.13 $1,927.85 $2,315.45 $387.60 $288,789.53
33 $288,789.53 $1,925.26 $2,315.45 $390.19 $288,399.34
34 $288,399.34 $1,922.66 $2,315.45 $392.79 $288,006.56
35 $288,006.56 $1,920.04 $2,315.45 $395.40 $287,611.15
36 $287,611.15 $1,917.41 $2,315.45 $398.04 $287,213.11
37 $287,213.11

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