62.35% is the change from 409 to 664
Calculation steps:
[( 664 - 409 ) ÷ 409] x 100 = 62.35%
Formula
Percentage change = [(664 - 409) / 409] x 100
Subtract the new number by the original number
664 - 409 = 255
255 ÷ 409 = 0.6234718826405868
0.6234718826405868 x 100 = 62.35%