-42.39% is the change from 821 to 473
Calculation steps:
[( 473 - 821 ) ÷ 821] x 100 = -42.39%
Formula
Percentage change = [(473 - 821) / 821] x 100
Subtract the new number by the original number
473 - 821 = -348
-348 ÷ 821 = -0.4238733252131547
-0.4238733252131547 x 100 = -42.39%