-80.09% is the change from 909 to 181
Calculation steps:
[( 181 - 909 ) ÷ 909] x 100 = -80.09%
Formula
Percentage change = [(181 - 909) / 909] x 100
Subtract the new number by the original number
181 - 909 = -728
-728 ÷ 909 = -0.8008800880088008
-0.8008800880088008 x 100 = -80.09%