-95.56% is the change from 518 to 23
Calculation steps:
[( 23 - 518 ) ÷ 518] x 100 = -95.56%
Formula
Percentage change = [(23 - 518) / 518] x 100
Subtract the new number by the original number
23 - 518 = -495
-495 ÷ 518 = -0.9555984555984556
-0.9555984555984556 x 100 = -95.56%