-90.95% is the change from 597 to 54
Calculation steps:
[( 54 - 597 ) ÷ 597] x 100 = -90.95%
Formula
Percentage change = [(54 - 597) / 597] x 100
Subtract the new number by the original number
54 - 597 = -543
-543 ÷ 597 = -0.9095477386934674
-0.9095477386934674 x 100 = -90.95%