-81.56% is the change from 591 to 109
Calculation steps:
[( 109 - 591 ) ÷ 591] x 100 = -81.56%
Formula
Percentage change = [(109 - 591) / 591] x 100
Subtract the new number by the original number
109 - 591 = -482
-482 ÷ 591 = -0.8155668358714044
-0.8155668358714044 x 100 = -81.56%