-96.29% is the change from 404 to 15
Calculation steps:
[( 15 - 404 ) ÷ 404] x 100 = -96.29%
Formula
Percentage change = [(15 - 404) / 404] x 100
Subtract the new number by the original number
15 - 404 = -389
-389 ÷ 404 = -0.9628712871287128
-0.9628712871287128 x 100 = -96.29%