70% is the change from 60 to 102
Calculation steps:
[( 102 - 60 ) ÷ 60] x 100 = 70%
Formula
Percentage change = [(102 - 60) / 60] x 100
Subtract the new number by the original number
102 - 60 = 42
42 ÷ 60 = 0.7
0.7 x 100 = 70%
Example