13.21% is the change from 371 to 420
Calculation steps:
[( 420 - 371 ) ÷ 371] x 100 = 13.21%
Formula
Percentage change = [(420 - 371) / 371] x 100
Subtract the new number by the original number
420 - 371 = 49
49 ÷ 371 = 0.1320754716981132
0.1320754716981132 x 100 = 13.21%