-77.05% is the change from 549 to 126
Calculation steps:
[( 126 - 549 ) ÷ 549] x 100 = -77.05%
Formula
Percentage change = [(126 - 549) / 549] x 100
Subtract the new number by the original number
126 - 549 = -423
-423 ÷ 549 = -0.7704918032786885
-0.7704918032786885 x 100 = -77.05%