-96.84% is the change from 950 to 30
Calculation steps:
[( 30 - 950 ) ÷ 950] x 100 = -96.84%
Formula
Percentage change = [(30 - 950) / 950] x 100
Subtract the new number by the original number
30 - 950 = -920
-920 ÷ 950 = -0.968421052631579
-0.968421052631579 x 100 = -96.84%