38.36% is the change from 391 to 541
Calculation steps:
[( 541 - 391 ) ÷ 391] x 100 = 38.36%
Formula
Percentage change = [(541 - 391) / 391] x 100
Subtract the new number by the original number
541 - 391 = 150
150 ÷ 391 = 0.3836317135549872
0.3836317135549872 x 100 = 38.36%