1.39% is the change from 72 to 73
Calculation steps:
[( 73 - 72 ) ÷ 72] x 100 = 1.39%
Formula
Percentage change = [(73 - 72) / 72] x 100
Subtract the new number by the original number
73 - 72 = 1
1 ÷ 72 = 0.013888888888888888
0.013888888888888888 x 100 = 1.39%