25.71% is the change from 70 to 88
Calculation steps:
[( 88 - 70 ) ÷ 70] x 100 = 25.71%
Formula
Percentage change = [(88 - 70) / 70] x 100
Subtract the new number by the original number
88 - 70 = 18
18 ÷ 70 = 0.2571428571428571
0.2571428571428571 x 100 = 25.71%