-38.8% is the change from 549 to 336
Calculation steps:
[( 336 - 549 ) ÷ 549] x 100 = -38.8%
Formula
Percentage change = [(336 - 549) / 549] x 100
Subtract the new number by the original number
336 - 549 = -213
-213 ÷ 549 = -0.3879781420765027
-0.3879781420765027 x 100 = -38.8%