Answer:
Future value = FV = 1000
Annual interest = i = 0.06
Yield to maturity = y = 0.15
Number of years = N = 15
Annuity Value = A = 60
PV_IFA = 5.847
PV_IF = 0.1229
1. PV of interest = A*PV_IFA = 350.82
PV of principal = FV * PV_IF = 122.9
Bond Price = $473.72
2. Percent increase at maturity
Maturity Value $1,000.00
Current price $473.72
Dollar increase $526.28