-90.63% is the change from 950 to 89
Calculation steps:
[( 89 - 950 ) ÷ 950] x 100 = -90.63%
Formula
Percentage change = [(89 - 950) / 950] x 100
Subtract the new number by the original number
89 - 950 = -861
-861 ÷ 950 = -0.9063157894736842
-0.9063157894736842 x 100 = -90.63%