21.39% is the change from 706 to 857
Calculation steps:
[( 857 - 706 ) ÷ 706] x 100 = 21.39%
Formula
Percentage change = [(857 - 706) / 706] x 100
Subtract the new number by the original number
857 - 706 = 151
151 ÷ 706 = 0.21388101983002833
0.21388101983002833 x 100 = 21.39%