-46.58% is the change from 511 to 273
Calculation steps:
[( 273 - 511 ) ÷ 511] x 100 = -46.58%
Formula
Percentage change = [(273 - 511) / 511] x 100
Subtract the new number by the original number
273 - 511 = -238
-238 ÷ 511 = -0.4657534246575342
-0.4657534246575342 x 100 = -46.58%