The formula for total loan cost is attached.
10 years = 120 payments
MONTHLY Interest = .0325 / 12 =
0.0027083333
total = 0.0027083333 * 21,000 * 120 / (1-(1.0027083333)-120
total = 6,825 / (1-
0.7228448406
)
total = 6,825 /
0.2771551594
total =
24,625.20