-33.37% is the change from 821 to 547
Calculation steps:
[( 547 - 821 ) ÷ 821] x 100 = -33.37%
Formula
Percentage change = [(547 - 821) / 821] x 100
Subtract the new number by the original number
547 - 821 = -274
-274 ÷ 821 = -0.3337393422655298
-0.3337393422655298 x 100 = -33.37%