-43.81% is the change from 509 to 286
Calculation steps:
[( 286 - 509 ) ÷ 509] x 100 = -43.81%
Formula
Percentage change = [(286 - 509) / 509] x 100
Subtract the new number by the original number
286 - 509 = -223
-223 ÷ 509 = -0.4381139489194499
-0.4381139489194499 x 100 = -43.81%