76.47% is the change from 17 to 30
Calculation steps:
[( 30 - 17 ) ÷ 17] x 100 = 76.47%
Formula
Percentage change = [(30 - 17) / 17] x 100
Subtract the new number by the original number
30 - 17 = 13
13 ÷ 17 = 0.7647058823529411
0.7647058823529411 x 100 = 76.47%