-28.19% is the change from 816 to 586
Calculation steps:
[( 586 - 816 ) ÷ 816] x 100 = -28.19%
Formula
Percentage change = [(586 - 816) / 816] x 100
Subtract the new number by the original number
586 - 816 = -230
-230 ÷ 816 = -0.2818627450980392
-0.2818627450980392 x 100 = -28.19%