-44.14% is the change from 512 to 286
Calculation steps:
[( 286 - 512 ) ÷ 512] x 100 = -44.14%
Formula
Percentage change = [(286 - 512) / 512] x 100
Subtract the new number by the original number
286 - 512 = -226
-226 ÷ 512 = -0.44140625
-0.44140625 x 100 = -44.14%