-21.86% is the change from 549 to 429
Calculation steps:
[( 429 - 549 ) ÷ 549] x 100 = -21.86%
Formula
Percentage change = [(429 - 549) / 549] x 100
Subtract the new number by the original number
429 - 549 = -120
-120 ÷ 549 = -0.2185792349726776
-0.2185792349726776 x 100 = -21.86%