-29.96% is the change from 821 to 575
Calculation steps:
[( 575 - 821 ) ÷ 821] x 100 = -29.96%
Formula
Percentage change = [(575 - 821) / 821] x 100
Subtract the new number by the original number
575 - 821 = -246
-246 ÷ 821 = -0.29963459196102316
-0.29963459196102316 x 100 = -29.96%