-28.68% is the change from 816 to 582
Calculation steps:
[( 582 - 816 ) ÷ 816] x 100 = -28.68%
Formula
Percentage change = [(582 - 816) / 816] x 100
Subtract the new number by the original number
582 - 816 = -234
-234 ÷ 816 = -0.2867647058823529
-0.2867647058823529 x 100 = -28.68%