85.71% is the change from 70 to 130
Calculation steps:
[( 130 - 70 ) ÷ 70] x 100 = 85.71%
Formula
Percentage change = [(130 - 70) / 70] x 100
Subtract the new number by the original number
130 - 70 = 60
60 ÷ 70 = 0.8571428571428571
0.8571428571428571 x 100 = 85.71%