14.06% is the change from 64 to 73
Calculation steps:
[( 73 - 64 ) ÷ 64] x 100 = 14.06%
Formula
Percentage change = [(73 - 64) / 64] x 100
Subtract the new number by the original number
73 - 64 = 9
9 ÷ 64 = 0.140625
0.140625 x 100 = 14.06%
Example