-89.08% is the change from 998 to 109
Calculation steps:
[( 109 - 998 ) ÷ 998] x 100 = -89.08%
Formula
Percentage change = [(109 - 998) / 998] x 100
Subtract the new number by the original number
109 - 998 = -889
-889 ÷ 998 = -0.8907815631262525
-0.8907815631262525 x 100 = -89.08%