144.29% is the change from 70 to 171
Calculation steps:
[( 171 - 70 ) ÷ 70] x 100 = 144.29%
Formula
Percentage change = [(171 - 70) / 70] x 100
Subtract the new number by the original number
171 - 70 = 101
101 ÷ 70 = 1.4428571428571428
1.4428571428571428 x 100 = 144.29%