37.34% is the change from 391 to 537
Calculation steps:
[( 537 - 391 ) ÷ 391] x 100 = 37.34%
Formula
Percentage change = [(537 - 391) / 391] x 100
Subtract the new number by the original number
537 - 391 = 146
146 ÷ 391 = 0.3734015345268542
0.3734015345268542 x 100 = 37.34%