9.79% is the change from 858 to 942
Calculation steps:
[( 942 - 858 ) ÷ 858] x 100 = 9.79%
Formula
Percentage change = [(942 - 858) / 858] x 100
Subtract the new number by the original number
942 - 858 = 84
84 ÷ 858 = 0.0979020979020979
0.0979020979020979 x 100 = 9.79%