-4.07% is the change from 909 to 872
Calculation steps:
[( 872 - 909 ) ÷ 909] x 100 = -4.07%
Formula
Percentage change = [(872 - 909) / 909] x 100
Subtract the new number by the original number
872 - 909 = -37
-37 ÷ 909 = -0.0407040704070407
-0.0407040704070407 x 100 = -4.07%