-90.89% is the change from 593 to 54
Calculation steps:
[( 54 - 593 ) ÷ 593] x 100 = -90.89%
Formula
Percentage change = [(54 - 593) / 593] x 100
Subtract the new number by the original number
54 - 593 = -539
-539 ÷ 593 = -0.9089376053962901
-0.9089376053962901 x 100 = -90.89%