23.5% is the change from 668 to 825
Calculation steps:
[( 825 - 668 ) ÷ 668] x 100 = 23.5%
Formula
Percentage change = [(825 - 668) / 668] x 100
Subtract the new number by the original number
825 - 668 = 157
157 ÷ 668 = 0.23502994011976047
0.23502994011976047 x 100 = 23.5%