681.54% is the change from 65 to 508
Calculation steps:
[( 508 - 65 ) ÷ 65] x 100 = 681.54%
Formula
Percentage change = [(508 - 65) / 65] x 100
Subtract the new number by the original number
508 - 65 = 443
443 ÷ 65 = 6.815384615384615
6.815384615384615 x 100 = 681.54%