-89.91% is the change from 109 to 11
Calculation steps:
[( 11 - 109 ) ÷ 109] x 100 = -89.91%
Formula
Percentage change = [(11 - 109) / 109] x 100
Subtract the new number by the original number
11 - 109 = -98
-98 ÷ 109 = -0.8990825688073395
-0.8990825688073395 x 100 = -89.91%