3.96% is the change from 404 to 420
Calculation steps:
[( 420 - 404 ) ÷ 404] x 100 = 3.96%
Formula
Percentage change = [(420 - 404) / 404] x 100
Subtract the new number by the original number
420 - 404 = 16
16 ÷ 404 = 0.039603960396039604
0.039603960396039604 x 100 = 3.96%