-21.29% is the change from 404 to 318
Calculation steps:
[( 318 - 404 ) ÷ 404] x 100 = -21.29%
Formula
Percentage change = [(318 - 404) / 404] x 100
Subtract the new number by the original number
318 - 404 = -86
-86 ÷ 404 = -0.21287128712871287
-0.21287128712871287 x 100 = -21.29%