-49.35% is the change from 539 to 273
Calculation steps:
[( 273 - 539 ) ÷ 539] x 100 = -49.35%
Formula
Percentage change = [(273 - 539) / 539] x 100
Subtract the new number by the original number
273 - 539 = -266
-266 ÷ 539 = -0.4935064935064935
-0.4935064935064935 x 100 = -49.35%