104.76% is the change from 42 to 86
Calculation steps:
[( 86 - 42 ) ÷ 42] x 100 = 104.76%
Formula
Percentage change = [(86 - 42) / 42] x 100
Subtract the new number by the original number
86 - 42 = 44
44 ÷ 42 = 1.0476190476190477
1.0476190476190477 x 100 = 104.76%