517.78% is the change from 135 to 834
Calculation steps:
[( 834 - 135 ) ÷ 135] x 100 = 517.78%
Formula
Percentage change = [(834 - 135) / 135] x 100
Subtract the new number by the original number
834 - 135 = 699
699 ÷ 135 = 5.177777777777778
5.177777777777778 x 100 = 517.78%