39.53% is the change from 301 to 420
Calculation steps:
[( 420 - 301 ) ÷ 301] x 100 = 39.53%
Formula
Percentage change = [(420 - 301) / 301] x 100
Subtract the new number by the original number
420 - 301 = 119
119 ÷ 301 = 0.3953488372093023
0.3953488372093023 x 100 = 39.53%