-34.1% is the change from 821 to 541
Calculation steps:
[( 541 - 821 ) ÷ 821] x 100 = -34.1%
Formula
Percentage change = [(541 - 821) / 821] x 100
Subtract the new number by the original number
541 - 821 = -280
-280 ÷ 821 = -0.341047503045067
-0.341047503045067 x 100 = -34.1%