-55.32% is the change from 611 to 273
Calculation steps:
[( 273 - 611 ) ÷ 611] x 100 = -55.32%
Formula
Percentage change = [(273 - 611) / 611] x 100
Subtract the new number by the original number
273 - 611 = -338
-338 ÷ 611 = -0.5531914893617021
-0.5531914893617021 x 100 = -55.32%