4.22% is the change from 403 to 420
Calculation steps:
[( 420 - 403 ) ÷ 403] x 100 = 4.22%
Formula
Percentage change = [(420 - 403) / 403] x 100
Subtract the new number by the original number
420 - 403 = 17
17 ÷ 403 = 0.04218362282878412
0.04218362282878412 x 100 = 4.22%