39.13% is the change from 391 to 544
Calculation steps:
[( 544 - 391 ) ÷ 391] x 100 = 39.13%
Formula
Percentage change = [(544 - 391) / 391] x 100
Subtract the new number by the original number
544 - 391 = 153
153 ÷ 391 = 0.391304347826087
0.391304347826087 x 100 = 39.13%