-90.67% is the change from 579 to 54
Calculation steps:
[( 54 - 579 ) ÷ 579] x 100 = -90.67%
Formula
Percentage change = [(54 - 579) / 579] x 100
Subtract the new number by the original number
54 - 579 = -525
-525 ÷ 579 = -0.9067357512953368
-0.9067357512953368 x 100 = -90.67%