-46.77% is the change from 821 to 437
Calculation steps:
[( 437 - 821 ) ÷ 821] x 100 = -46.77%
Formula
Percentage change = [(437 - 821) / 821] x 100
Subtract the new number by the original number
437 - 821 = -384
-384 ÷ 821 = -0.46772228989037756
-0.46772228989037756 x 100 = -46.77%