84.29% is the change from 70 to 129
Calculation steps:
[( 129 - 70 ) ÷ 70] x 100 = 84.29%
Formula
Percentage change = [(129 - 70) / 70] x 100
Subtract the new number by the original number
129 - 70 = 59
59 ÷ 70 = 0.8428571428571429
0.8428571428571429 x 100 = 84.29%