-96.23% is the change from 478 to 18
Calculation steps:
[( 18 - 478 ) ÷ 478] x 100 = -96.23%
Formula
Percentage change = [(18 - 478) / 478] x 100
Subtract the new number by the original number
18 - 478 = -460
-460 ÷ 478 = -0.9623430962343096
-0.9623430962343096 x 100 = -96.23%