20.9% is the change from 67 to 81
Calculation steps:
[( 81 - 67 ) ÷ 67] x 100 = 20.9%
Formula
Percentage change = [(81 - 67) / 67] x 100
Subtract the new number by the original number
81 - 67 = 14
14 ÷ 67 = 0.208955223880597
0.208955223880597 x 100 = 20.9%