-9.59% is the change from 949 to 858
Calculation steps:
[( 858 - 949 ) ÷ 949] x 100 = -9.59%
Formula
Percentage change = [(858 - 949) / 949] x 100
Subtract the new number by the original number
858 - 949 = -91
-91 ÷ 949 = -0.0958904109589041
-0.0958904109589041 x 100 = -9.59%