139.66% is the change from 348 to 834
Calculation steps:
[( 834 - 348 ) ÷ 348] x 100 = 139.66%
Formula
Percentage change = [(834 - 348) / 348] x 100
Subtract the new number by the original number
834 - 348 = 486
486 ÷ 348 = 1.396551724137931
1.396551724137931 x 100 = 139.66%