12.68% is the change from 71 to 80
Calculation steps:
[( 80 - 71 ) ÷ 71] x 100 = 12.68%
Formula
Percentage change = [(80 - 71) / 71] x 100
Subtract the new number by the original number
80 - 71 = 9
9 ÷ 71 = 0.1267605633802817
0.1267605633802817 x 100 = 12.68%