-44.21% is the change from 821 to 458
Calculation steps:
[( 458 - 821 ) ÷ 821] x 100 = -44.21%
Formula
Percentage change = [(458 - 821) / 821] x 100
Subtract the new number by the original number
458 - 821 = -363
-363 ÷ 821 = -0.44214372716199757
-0.44214372716199757 x 100 = -44.21%