-28.64% is the change from 817 to 583
Calculation steps:
[( 583 - 817 ) ÷ 817] x 100 = -28.64%
Formula
Percentage change = [(583 - 817) / 817] x 100
Subtract the new number by the original number
583 - 817 = -234
-234 ÷ 817 = -0.2864137086903305
-0.2864137086903305 x 100 = -28.64%