-28.68% is the change from 823 to 587
Calculation steps:
[( 587 - 823 ) ÷ 823] x 100 = -28.68%
Formula
Percentage change = [(587 - 823) / 823] x 100
Subtract the new number by the original number
587 - 823 = -236
-236 ÷ 823 = -0.2867557715674362
-0.2867557715674362 x 100 = -28.68%