-0.42% is the change from 950 to 946
Calculation steps:
[( 946 - 950 ) ÷ 950] x 100 = -0.42%
Formula
Percentage change = [(946 - 950) / 950] x 100
Subtract the new number by the original number
946 - 950 = -4
-4 ÷ 950 = -0.004210526315789474
-0.004210526315789474 x 100 = -0.42%