31.46% is the change from 391 to 514
Calculation steps:
[( 514 - 391 ) ÷ 391] x 100 = 31.46%
Formula
Percentage change = [(514 - 391) / 391] x 100
Subtract the new number by the original number
514 - 391 = 123
123 ÷ 391 = 0.3145780051150895
0.3145780051150895 x 100 = 31.46%