8.43% is the change from 664 to 720
Calculation steps:
[( 720 - 664 ) ÷ 664] x 100 = 8.43%
Formula
Percentage change = [(720 - 664) / 664] x 100
Subtract the new number by the original number
720 - 664 = 56
56 ÷ 664 = 0.08433734939759036
0.08433734939759036 x 100 = 8.43%