-75.05% is the change from 549 to 137
Calculation steps:
[( 137 - 549 ) ÷ 549] x 100 = -75.05%
Formula
Percentage change = [(137 - 549) / 549] x 100
Subtract the new number by the original number
137 - 549 = -412
-412 ÷ 549 = -0.7504553734061931
-0.7504553734061931 x 100 = -75.05%