-31.91% is the change from 821 to 559
Calculation steps:
[( 559 - 821 ) ÷ 821] x 100 = -31.91%
Formula
Percentage change = [(559 - 821) / 821] x 100
Subtract the new number by the original number
559 - 821 = -262
-262 ÷ 821 = -0.31912302070645554
-0.31912302070645554 x 100 = -31.91%