30.84% is the change from 668 to 874
Calculation steps:
[( 874 - 668 ) ÷ 668] x 100 = 30.84%
Formula
Percentage change = [(874 - 668) / 668] x 100
Subtract the new number by the original number
874 - 668 = 206
206 ÷ 668 = 0.3083832335329341
0.3083832335329341 x 100 = 30.84%