-11.74% is the change from 579 to 511
Calculation steps:
[( 511 - 579 ) ÷ 579] x 100 = -11.74%
Formula
Percentage change = [(511 - 579) / 579] x 100
Subtract the new number by the original number
511 - 579 = -68
-68 ÷ 579 = -0.11744386873920552
-0.11744386873920552 x 100 = -11.74%