-81.41% is the change from 909 to 169
Calculation steps:
[( 169 - 909 ) ÷ 909] x 100 = -81.41%
Formula
Percentage change = [(169 - 909) / 909] x 100
Subtract the new number by the original number
169 - 909 = -740
-740 ÷ 909 = -0.8140814081408141
-0.8140814081408141 x 100 = -81.41%