-90.56% is the change from 593 to 56
Calculation steps:
[( 56 - 593 ) ÷ 593] x 100 = -90.56%
Formula
Percentage change = [(56 - 593) / 593] x 100
Subtract the new number by the original number
56 - 593 = -537
-537 ÷ 593 = -0.9055649241146712
-0.9055649241146712 x 100 = -90.56%