-33.78% is the change from 829 to 549
Calculation steps:
[( 549 - 829 ) ÷ 829] x 100 = -33.78%
Formula
Percentage change = [(549 - 829) / 829] x 100
Subtract the new number by the original number
549 - 829 = -280
-280 ÷ 829 = -0.33775633293124246
-0.33775633293124246 x 100 = -33.78%