-89.88% is the change from 889 to 90
Calculation steps:
[( 90 - 889 ) ÷ 889] x 100 = -89.88%
Formula
Percentage change = [(90 - 889) / 889] x 100
Subtract the new number by the original number
90 - 889 = -799
-799 ÷ 889 = -0.8987626546681665
-0.8987626546681665 x 100 = -89.88%