-0.84% is the change from 950 to 942
Calculation steps:
[( 942 - 950 ) ÷ 950] x 100 = -0.84%
Formula
Percentage change = [(942 - 950) / 950] x 100
Subtract the new number by the original number
942 - 950 = -8
-8 ÷ 950 = -0.008421052631578947
-0.008421052631578947 x 100 = -0.84%