-43.71% is the change from 485 to 273
Calculation steps:
[( 273 - 485 ) ÷ 485] x 100 = -43.71%
Formula
Percentage change = [(273 - 485) / 485] x 100
Subtract the new number by the original number
273 - 485 = -212
-212 ÷ 485 = -0.43711340206185567
-0.43711340206185567 x 100 = -43.71%