645.59% is the change from 68 to 507
Calculation steps:
[( 507 - 68 ) ÷ 68] x 100 = 645.59%
Formula
Percentage change = [(507 - 68) / 68] x 100
Subtract the new number by the original number
507 - 68 = 439
439 ÷ 68 = 6.455882352941177
6.455882352941177 x 100 = 645.59%