283.33% is the change from 42 to 161
Calculation steps:
[( 161 - 42 ) ÷ 42] x 100 = 283.33%
Formula
Percentage change = [(161 - 42) / 42] x 100
Subtract the new number by the original number
161 - 42 = 119
119 ÷ 42 = 2.8333333333333335
2.8333333333333335 x 100 = 283.33%