97.62% is the change from 42 to 83
Calculation steps:
[( 83 - 42 ) ÷ 42] x 100 = 97.62%
Formula
Percentage change = [(83 - 42) / 42] x 100
Subtract the new number by the original number
83 - 42 = 41
41 ÷ 42 = 0.9761904761904762
0.9761904761904762 x 100 = 97.62%