Two years ago you purchased a 18000 car putting 3500 down an
Two years ago, you purchased a $18,000 car, putting $3,500 down and borrowing the rest. Your loan was a 36-month fixed rate loan at a stated rate of 7.0% per year. You paid a non-refundable application fee of $100 at that time in cash. Interest rates have fallen during the last two years and a new bank now offers to refinance your car by lending you the balance due at a stated rate of 4.5% per year. You will use the proceeds of this loan to pay off the old loan. Suppose the new loan over the residual loan life requires a $200 non-refundable application fee. Given all this information, should you refinance? How much do you gain/lose if you do?
Solution
Since the cost under refinancing is more than continuing the first loan, first loan should be continued
Loss on refinancing = 1846.59-1717.92 = $128.67
| Loan Amount(PV) | £14,500.00 | 
| Annual Interest Rate (\'r) | 7.00 % | 
| Loan Period in Years (n) | 3 | 
| Number of Payments Per Year (m) | 12 | 
| Loan Payment= | r/m*(PV)/(1-(1+r/m)^-n*m) | 
| = | ((0.07/12)*14500)/(1-(1+(0.07/12))^(-3*12) | 
| = | 447.72 | 
| Total Payments= | 447.72*36 | 
| = | 16117.92 | 
| Interest= | 16117.92-14500 | 
| = | 1617.92 | 

