142.86% is the change from 42 to 102
Calculation steps:
[( 102 - 42 ) ÷ 42] x 100 = 142.86%
Formula
Percentage change = [(102 - 42) / 42] x 100
Subtract the new number by the original number
102 - 42 = 60
60 ÷ 42 = 1.4285714285714286
1.4285714285714286 x 100 = 142.86%