108.95% is the change from 391 to 817
Calculation steps:
[( 817 - 391 ) ÷ 391] x 100 = 108.95%
Formula
Percentage change = [(817 - 391) / 391] x 100
Subtract the new number by the original number
817 - 391 = 426
426 ÷ 391 = 1.0895140664961638
1.0895140664961638 x 100 = 108.95%