-61.93% is the change from 549 to 209
Calculation steps:
[( 209 - 549 ) ÷ 549] x 100 = -61.93%
Formula
Percentage change = [(209 - 549) / 549] x 100
Subtract the new number by the original number
209 - 549 = -340
-340 ÷ 549 = -0.6193078324225865
-0.6193078324225865 x 100 = -61.93%