-27.99% is the change from 811 to 584
Calculation steps:
[( 584 - 811 ) ÷ 811] x 100 = -27.99%
Formula
Percentage change = [(584 - 811) / 811] x 100
Subtract the new number by the original number
584 - 811 = -227
-227 ÷ 811 = -0.279901356350185
-0.279901356350185 x 100 = -27.99%