140% is the change from 70 to 168
Calculation steps:
[( 168 - 70 ) ÷ 70] x 100 = 140%
Formula
Percentage change = [(168 - 70) / 70] x 100
Subtract the new number by the original number
168 - 70 = 98
98 ÷ 70 = 1.4
1.4 x 100 = 140%
Example