50% is the change from 478 to 717
Calculation steps:
[( 717 - 478 ) ÷ 478] x 100 = 50%
Formula
Percentage change = [(717 - 478) / 478] x 100
Subtract the new number by the original number
717 - 478 = 239
239 ÷ 478 = 0.5
0.5 x 100 = 50%
Example