64.71% is the change from 17 to 28
Calculation steps:
[( 28 - 17 ) ÷ 17] x 100 = 64.71%
Formula
Percentage change = [(28 - 17) / 17] x 100
Subtract the new number by the original number
28 - 17 = 11
11 ÷ 17 = 0.6470588235294118
0.6470588235294118 x 100 = 64.71%