-90.65% is the change from 930 to 87
Calculation steps:
[( 87 - 930 ) ÷ 930] x 100 = -90.65%
Formula
Percentage change = [(87 - 930) / 930] x 100
Subtract the new number by the original number
87 - 930 = -843
-843 ÷ 930 = -0.9064516129032258
-0.9064516129032258 x 100 = -90.65%