-58.83% is the change from 821 to 338
Calculation steps:
[( 338 - 821 ) ÷ 821] x 100 = -58.83%
Formula
Percentage change = [(338 - 821) / 821] x 100
Subtract the new number by the original number
338 - 821 = -483
-483 ÷ 821 = -0.5883069427527405
-0.5883069427527405 x 100 = -58.83%