-71.72% is the change from 548 to 155
Calculation steps:
[( 155 - 548 ) ÷ 548] x 100 = -71.72%
Formula
Percentage change = [(155 - 548) / 548] x 100
Subtract the new number by the original number
155 - 548 = -393
-393 ÷ 548 = -0.7171532846715328
-0.7171532846715328 x 100 = -71.72%