-90.31% is the change from 918 to 89
Calculation steps:
[( 89 - 918 ) ÷ 918] x 100 = -90.31%
Formula
Percentage change = [(89 - 918) / 918] x 100
Subtract the new number by the original number
89 - 918 = -829
-829 ÷ 918 = -0.9030501089324618
-0.9030501089324618 x 100 = -90.31%