-31.58% is the change from 817 to 559
Calculation steps:
[( 559 - 817 ) ÷ 817] x 100 = -31.58%
Formula
Percentage change = [(559 - 817) / 817] x 100
Subtract the new number by the original number
559 - 817 = -258
-258 ÷ 817 = -0.3157894736842105
-0.3157894736842105 x 100 = -31.58%