-90.52% is the change from 918 to 87
Calculation steps:
[( 87 - 918 ) ÷ 918] x 100 = -90.52%
Formula
Percentage change = [(87 - 918) / 918] x 100
Subtract the new number by the original number
87 - 918 = -831
-831 ÷ 918 = -0.9052287581699346
-0.9052287581699346 x 100 = -90.52%