680% is the change from 65 to 507
Calculation steps:
[( 507 - 65 ) ÷ 65] x 100 = 680%
Formula
Percentage change = [(507 - 65) / 65] x 100
Subtract the new number by the original number
507 - 65 = 442
442 ÷ 65 = 6.8
6.8 x 100 = 680%
Example