-0.59% is the change from 512 to 509
Calculation steps:
[( 509 - 512 ) ÷ 512] x 100 = -0.59%
Formula
Percentage change = [(509 - 512) / 512] x 100
Subtract the new number by the original number
509 - 512 = -3
-3 ÷ 512 = -0.005859375
-0.005859375 x 100 = -0.59%