8.85% is the change from 610 to 664
Calculation steps:
[( 664 - 610 ) ÷ 610] x 100 = 8.85%
Formula
Percentage change = [(664 - 610) / 610] x 100
Subtract the new number by the original number
664 - 610 = 54
54 ÷ 610 = 0.08852459016393442
0.08852459016393442 x 100 = 8.85%