-88.08% is the change from 579 to 69
Calculation steps:
[( 69 - 579 ) ÷ 579] x 100 = -88.08%
Formula
Percentage change = [(69 - 579) / 579] x 100
Subtract the new number by the original number
69 - 579 = -510
-510 ÷ 579 = -0.8808290155440415
-0.8808290155440415 x 100 = -88.08%