-30.82% is the change from 821 to 568
Calculation steps:
[( 568 - 821 ) ÷ 821] x 100 = -30.82%
Formula
Percentage change = [(568 - 821) / 821] x 100
Subtract the new number by the original number
568 - 821 = -253
-253 ÷ 821 = -0.3081607795371498
-0.3081607795371498 x 100 = -30.82%