130% is the change from 70 to 161
Calculation steps:
[( 161 - 70 ) ÷ 70] x 100 = 130%
Formula
Percentage change = [(161 - 70) / 70] x 100
Subtract the new number by the original number
161 - 70 = 91
91 ÷ 70 = 1.3
1.3 x 100 = 130%
Example