-10.34% is the change from 957 to 858
Calculation steps:
[( 858 - 957 ) ÷ 957] x 100 = -10.34%
Formula
Percentage change = [(858 - 957) / 957] x 100
Subtract the new number by the original number
858 - 957 = -99
-99 ÷ 957 = -0.10344827586206896
-0.10344827586206896 x 100 = -10.34%