-99.58% is the change from 950 to 4
Calculation steps:
[( 4 - 950 ) ÷ 950] x 100 = -99.58%
Formula
Percentage change = [(4 - 950) / 950] x 100
Subtract the new number by the original number
4 - 950 = -946
-946 ÷ 950 = -0.9957894736842106
-0.9957894736842106 x 100 = -99.58%