45.71% is the change from 70 to 102
Calculation steps:
[( 102 - 70 ) ÷ 70] x 100 = 45.71%
Formula
Percentage change = [(102 - 70) / 70] x 100
Subtract the new number by the original number
102 - 70 = 32
32 ÷ 70 = 0.45714285714285713
0.45714285714285713 x 100 = 45.71%