Answer:
64.7%
Explanation:
To solve this problem we use compounded interest formula.
a = amount
p = principle
r = interest rate
n = number of times compounded in a period
t = time period
a = 1647.01
1647.01-1000 = 647.01
647.01/1000 = 0.64701
0.64701*100% = 64.7%