-11.39% is the change from 913 to 809
Calculation steps:
[( 809 - 913 ) ÷ 913] x 100 = -11.39%
Formula
Percentage change = [(809 - 913) / 913] x 100
Subtract the new number by the original number
809 - 913 = -104
-104 ÷ 913 = -0.11391018619934283
-0.11391018619934283 x 100 = -11.39%