-27.73% is the change from 815 to 589
Calculation steps:
[( 589 - 815 ) ÷ 815] x 100 = -27.73%
Formula
Percentage change = [(589 - 815) / 815] x 100
Subtract the new number by the original number
589 - 815 = -226
-226 ÷ 815 = -0.2773006134969325
-0.2773006134969325 x 100 = -27.73%