30.69% is the change from 668 to 873
Calculation steps:
[( 873 - 668 ) ÷ 668] x 100 = 30.69%
Formula
Percentage change = [(873 - 668) / 668] x 100
Subtract the new number by the original number
873 - 668 = 205
205 ÷ 668 = 0.3068862275449102
0.3068862275449102 x 100 = 30.69%