-6.26% is the change from 511 to 479
Calculation steps:
[( 479 - 511 ) ÷ 511] x 100 = -6.26%
Formula
Percentage change = [(479 - 511) / 511] x 100
Subtract the new number by the original number
479 - 511 = -32
-32 ÷ 511 = -0.06262230919765166
-0.06262230919765166 x 100 = -6.26%