-30.57% is the change from 579 to 402
Calculation steps:
[( 402 - 579 ) ÷ 579] x 100 = -30.57%
Formula
Percentage change = [(402 - 579) / 579] x 100
Subtract the new number by the original number
402 - 579 = -177
-177 ÷ 579 = -0.30569948186528495
-0.30569948186528495 x 100 = -30.57%