80.6% is the change from 397 to 717
Calculation steps:
[( 717 - 397 ) ÷ 397] x 100 = 80.6%
Formula
Percentage change = [(717 - 397) / 397] x 100
Subtract the new number by the original number
717 - 397 = 320
320 ÷ 397 = 0.8060453400503779
0.8060453400503779 x 100 = 80.6%