-82.01% is the change from 606 to 109
Calculation steps:
[( 109 - 606 ) ÷ 606] x 100 = -82.01%
Formula
Percentage change = [(109 - 606) / 606] x 100
Subtract the new number by the original number
109 - 606 = -497
-497 ÷ 606 = -0.8201320132013201
-0.8201320132013201 x 100 = -82.01%