-44.23% is the change from 511 to 285
Calculation steps:
[( 285 - 511 ) ÷ 511] x 100 = -44.23%
Formula
Percentage change = [(285 - 511) / 511] x 100
Subtract the new number by the original number
285 - 511 = -226
-226 ÷ 511 = -0.44227005870841485
-0.44227005870841485 x 100 = -44.23%