134.1% is the change from 349 to 817
Calculation steps:
[( 817 - 349 ) ÷ 349] x 100 = 134.1%
Formula
Percentage change = [(817 - 349) / 349] x 100
Subtract the new number by the original number
817 - 349 = 468
468 ÷ 349 = 1.340974212034384
1.340974212034384 x 100 = 134.1%