Given:
Loan Amount: $625,000
Loan Terms: 40 years = 480 months = n (convert years to months)
Interest Rate: 4.75% =
Monthly Loan Payment Formula:
Monthly Loan Payment =
Substitute given values into Monthly Payment Formula:
Monthly Loan Payment =
Monthly Loan Payment = $2,910.99 ( rounded to two decimal places)
Notes:
Total Cost = Monthly Loan Payment * Number of Payments
Total Cost = $2,910.99 * 480 = $1,397,275.20
Interest Cost = Total Cost – Loan Amount
Interest Cost = $1,397,275.20 – $625,000 = $772,275.20
Interest Cost is greater than the Loan Amount
Loan Amount: $625,000
Loan Terms: 40 years = 480 months = n (convert years to months)
Interest Rate: 4.75% =
4.75/100
= 0.0475 = r (convert percent to a decimal)Monthly Loan Payment Formula:
Monthly Loan Payment =
Loan Amount *
r
/
12
/
1 – ( 1+ r/12
) -n
Substitute given values into Monthly Payment Formula:
Monthly Loan Payment =
625,000 *
0.0475
/
12
/
1 – ( 1+ 0.0475/12
) -480
Monthly Loan Payment = $2,910.99 ( rounded to two decimal places)
Notes:
Total Cost = Monthly Loan Payment * Number of Payments
Total Cost = $2,910.99 * 480 = $1,397,275.20
Interest Cost = Total Cost – Loan Amount
Interest Cost = $1,397,275.20 – $625,000 = $772,275.20
Interest Cost is greater than the Loan Amount