-46.68% is the change from 512 to 273
Calculation steps:
[( 273 - 512 ) ÷ 512] x 100 = -46.68%
Formula
Percentage change = [(273 - 512) / 512] x 100
Subtract the new number by the original number
273 - 512 = -239
-239 ÷ 512 = -0.466796875
-0.466796875 x 100 = -46.68%