-84.82% is the change from 909 to 138
Calculation steps:
[( 138 - 909 ) ÷ 909] x 100 = -84.82%
Formula
Percentage change = [(138 - 909) / 909] x 100
Subtract the new number by the original number
138 - 909 = -771
-771 ÷ 909 = -0.8481848184818482
-0.8481848184818482 x 100 = -84.82%