17.65% is the change from 17 to 20
Calculation steps:
[( 20 - 17 ) ÷ 17] x 100 = 17.65%
Formula
Percentage change = [(20 - 17) / 17] x 100
Subtract the new number by the original number
20 - 17 = 3
3 ÷ 17 = 0.17647058823529413
0.17647058823529413 x 100 = 17.65%