55.71% is the change from 70 to 109
Calculation steps:
[( 109 - 70 ) ÷ 70] x 100 = 55.71%
Formula
Percentage change = [(109 - 70) / 70] x 100
Subtract the new number by the original number
109 - 70 = 39
39 ÷ 70 = 0.5571428571428572
0.5571428571428572 x 100 = 55.71%