238.1% is the change from 42 to 142
Calculation steps:
[( 142 - 42 ) ÷ 42] x 100 = 238.1%
Formula
Percentage change = [(142 - 42) / 42] x 100
Subtract the new number by the original number
142 - 42 = 100
100 ÷ 42 = 2.380952380952381
2.380952380952381 x 100 = 238.1%