108.18% is the change from 391 to 814
Calculation steps:
[( 814 - 391 ) ÷ 391] x 100 = 108.18%
Formula
Percentage change = [(814 - 391) / 391] x 100
Subtract the new number by the original number
814 - 391 = 423
423 ÷ 391 = 1.081841432225064
1.081841432225064 x 100 = 108.18%