-90.93% is the change from 959 to 87
Calculation steps:
[( 87 - 959 ) ÷ 959] x 100 = -90.93%
Formula
Percentage change = [(87 - 959) / 959] x 100
Subtract the new number by the original number
87 - 959 = -872
-872 ÷ 959 = -0.9092805005213764
-0.9092805005213764 x 100 = -90.93%