-1.39% is the change from 72 to 71
Calculation steps:
[( 71 - 72 ) ÷ 72] x 100 = -1.39%
Formula
Percentage change = [(71 - 72) / 72] x 100
Subtract the new number by the original number
71 - 72 = -1
-1 ÷ 72 = -0.013888888888888888
-0.013888888888888888 x 100 = -1.39%