245.24% is the change from 42 to 145
Calculation steps:
[( 145 - 42 ) ÷ 42] x 100 = 245.24%
Formula
Percentage change = [(145 - 42) / 42] x 100
Subtract the new number by the original number
145 - 42 = 103
103 ÷ 42 = 2.4523809523809526
2.4523809523809526 x 100 = 245.24%