-41.29% is the change from 821 to 482
Calculation steps:
[( 482 - 821 ) ÷ 821] x 100 = -41.29%
Formula
Percentage change = [(482 - 821) / 821] x 100
Subtract the new number by the original number
482 - 821 = -339
-339 ÷ 821 = -0.41291108404384896
-0.41291108404384896 x 100 = -41.29%