-90.83% is the change from 949 to 87
Calculation steps:
[( 87 - 949 ) ÷ 949] x 100 = -90.83%
Formula
Percentage change = [(87 - 949) / 949] x 100
Subtract the new number by the original number
87 - 949 = -862
-862 ÷ 949 = -0.9083245521601686
-0.9083245521601686 x 100 = -90.83%