28.87% is the change from 665 to 857
Calculation steps:
[( 857 - 665 ) ÷ 665] x 100 = 28.87%
Formula
Percentage change = [(857 - 665) / 665] x 100
Subtract the new number by the original number
857 - 665 = 192
192 ÷ 665 = 0.2887218045112782
0.2887218045112782 x 100 = 28.87%