-90.32% is the change from 909 to 88
Calculation steps:
[( 88 - 909 ) ÷ 909] x 100 = -90.32%
Formula
Percentage change = [(88 - 909) / 909] x 100
Subtract the new number by the original number
88 - 909 = -821
-821 ÷ 909 = -0.9031903190319032
-0.9031903190319032 x 100 = -90.32%