-50.55% is the change from 548 to 271
Calculation steps:
[( 271 - 548 ) ÷ 548] x 100 = -50.55%
Formula
Percentage change = [(271 - 548) / 548] x 100
Subtract the new number by the original number
271 - 548 = -277
-277 ÷ 548 = -0.5054744525547445
-0.5054744525547445 x 100 = -50.55%