12.59% is the change from 858 to 966
Calculation steps:
[( 966 - 858 ) ÷ 858] x 100 = 12.59%
Formula
Percentage change = [(966 - 858) / 858] x 100
Subtract the new number by the original number
966 - 858 = 108
108 ÷ 858 = 0.1258741258741259
0.1258741258741259 x 100 = 12.59%