23.8% is the change from 668 to 827
Calculation steps:
[( 827 - 668 ) ÷ 668] x 100 = 23.8%
Formula
Percentage change = [(827 - 668) / 668] x 100
Subtract the new number by the original number
827 - 668 = 159
159 ÷ 668 = 0.23802395209580837
0.23802395209580837 x 100 = 23.8%