-90.89% is the change from 988 to 90
Calculation steps:
[( 90 - 988 ) ÷ 988] x 100 = -90.89%
Formula
Percentage change = [(90 - 988) / 988] x 100
Subtract the new number by the original number
90 - 988 = -898
-898 ÷ 988 = -0.9089068825910931
-0.9089068825910931 x 100 = -90.89%