134.31% is the change from 306 to 717
Calculation steps:
[( 717 - 306 ) ÷ 306] x 100 = 134.31%
Formula
Percentage change = [(717 - 306) / 306] x 100
Subtract the new number by the original number
717 - 306 = 411
411 ÷ 306 = 1.3431372549019607
1.3431372549019607 x 100 = 134.31%