21.05% is the change from 708 to 857
Calculation steps:
[( 857 - 708 ) ÷ 708] x 100 = 21.05%
Formula
Percentage change = [(857 - 708) / 708] x 100
Subtract the new number by the original number
857 - 708 = 149
149 ÷ 708 = 0.21045197740112995
0.21045197740112995 x 100 = 21.05%