34.68% is the change from 496 to 668
Calculation steps:
[( 668 - 496 ) ÷ 496] x 100 = 34.68%
Formula
Percentage change = [(668 - 496) / 496] x 100
Subtract the new number by the original number
668 - 496 = 172
172 ÷ 496 = 0.3467741935483871
0.3467741935483871 x 100 = 34.68%