-96.24% is the change from 479 to 18
Calculation steps:
[( 18 - 479 ) ÷ 479] x 100 = -96.24%
Formula
Percentage change = [(18 - 479) / 479] x 100
Subtract the new number by the original number
18 - 479 = -461
-461 ÷ 479 = -0.9624217118997912
-0.9624217118997912 x 100 = -96.24%