135.48% is the change from 31 to 73
Calculation steps:
[( 73 - 31 ) ÷ 31] x 100 = 135.48%
Formula
Percentage change = [(73 - 31) / 31] x 100
Subtract the new number by the original number
73 - 31 = 42
42 ÷ 31 = 1.3548387096774193
1.3548387096774193 x 100 = 135.48%