-22% is the change from 909 to 709
Calculation steps:
[( 709 - 909 ) ÷ 909] x 100 = -22%
Formula
Percentage change = [(709 - 909) / 909] x 100
Subtract the new number by the original number
709 - 909 = -200
-200 ÷ 909 = -0.22002200220022003
-0.22002200220022003 x 100 = -22%