-3.81% is the change from 420 to 404
Calculation steps:
[( 404 - 420 ) ÷ 420] x 100 = -3.81%
Formula
Percentage change = [(404 - 420) / 420] x 100
Subtract the new number by the original number
404 - 420 = -16
-16 ÷ 420 = -0.0380952380952381
-0.0380952380952381 x 100 = -3.81%