-9.68% is the change from 950 to 858
Calculation steps:
[( 858 - 950 ) ÷ 950] x 100 = -9.68%
Formula
Percentage change = [(858 - 950) / 950] x 100
Subtract the new number by the original number
858 - 950 = -92
-92 ÷ 950 = -0.0968421052631579
-0.0968421052631579 x 100 = -9.68%