-45.51% is the change from 501 to 273
Calculation steps:
[( 273 - 501 ) ÷ 501] x 100 = -45.51%
Formula
Percentage change = [(273 - 501) / 501] x 100
Subtract the new number by the original number
273 - 501 = -228
-228 ÷ 501 = -0.4550898203592814
-0.4550898203592814 x 100 = -45.51%