-90.75% is the change from 584 to 54
Calculation steps:
[( 54 - 584 ) ÷ 584] x 100 = -90.75%
Formula
Percentage change = [(54 - 584) / 584] x 100
Subtract the new number by the original number
54 - 584 = -530
-530 ÷ 584 = -0.9075342465753424
-0.9075342465753424 x 100 = -90.75%