-82.95% is the change from 909 to 155
Calculation steps:
[( 155 - 909 ) ÷ 909] x 100 = -82.95%
Formula
Percentage change = [(155 - 909) / 909] x 100
Subtract the new number by the original number
155 - 909 = -754
-754 ÷ 909 = -0.8294829482948295
-0.8294829482948295 x 100 = -82.95%