-33.29% is the change from 823 to 549
Calculation steps:
[( 549 - 823 ) ÷ 823] x 100 = -33.29%
Formula
Percentage change = [(549 - 823) / 823] x 100
Subtract the new number by the original number
549 - 823 = -274
-274 ÷ 823 = -0.33292831105710813
-0.33292831105710813 x 100 = -33.29%