46.08% is the change from 217 to 317
Calculation steps:
[( 317 - 217 ) ÷ 217] x 100 = 46.08%
Formula
Percentage change = [(317 - 217) / 217] x 100
Subtract the new number by the original number
317 - 217 = 100
100 ÷ 217 = 0.4608294930875576
0.4608294930875576 x 100 = 46.08%