In: Advanced Math
You need a loan of $160,000 to buy a home. Calculate your monthly payments and total closing costs for each choice below.
Choice 1: 30 year fixed rate at 5% with closing costs if $2300 and no points.
Choice 2: 30 year fixed rate at 4.5% with closing costs of $2300 and 5 points.
What is the monthly payment for choice one?
What is the monthly payment for choice two?
what is the total closing cost for choice one?
what is the total closing cost for choice two?
why might choice one be better?
why might choice two be better?
Choice 1: 30 year fixed rate at 5% with closing costs if $2300 and no points.
Choice 2: 30 year fixed rate at 4.5% with closing costs of $2300 and 5 points
Loan amount = $160000
Period t = 30y
Rate of interest r = 5% = 5/100 = 0.05
And compounding frequency is monthly so t = 30 x 12 = 360
And Rate of interest r = 0.05 / 12= 0.0041667 monthly
Now we can use the below formula to find the monthly payment (PMT)
PMT = [ p x r x (1+r)t ] / [(1+r)t-1]
PMT = [ 160000 x 0.0041667 x (1+0.0041667)360 ] / [(1+0.0041667)360-1]
PMT = [ 666.672 x 4.46779 ] / [4.46779 - 1]
PMT = [ 2978.5504] / [3.46779]
PMT = 858.9189 ~ 859
So the monthly payment = $859
Loan amount = $160000
Period t = 30y
Rate of interest r = 4.5% = 4.5/100 = 0.045
And compounding frequency is monthly so t = 30 x 12 = 360
And Rate of interest r = 0.045 / 12= 0.00375 monthly
Now we can use the below formula to find the monthly payment (PMT)
PMT = [ p x r x (1+r)t ] / [(1+r)t-1]
PMT = [ 160000 x 0.00375 x (1+0.00375)360 ] / [(1+0.00375)360-1]
PMT = [ 600 x 3.84769 ] / [3.84769 - 1]
PMT = [ 2308.614] / [2.84769]
PMT = 810.697 ~ 810.7
So the monthly payment = $810.7
Form the given information closing cost for choice one is $2300
Form the given information closing cost for choice two is $2300 and 5 points.
So 5 points = 5% of principal amount
= 160000 x 5/100
= 8000
So total closing cost = 2300 + 8000 = $10300
5) why might choice one better?
Because of there is no points to include in the closing cost and it was very low when compare with choice two.
When compare two choices 2nd choice is having less monthly payment.