72.29% is the change from 397 to 684
Calculation steps:
[( 684 - 397 ) ÷ 397] x 100 = 72.29%
Formula
Percentage change = [(684 - 397) / 397] x 100
Subtract the new number by the original number
684 - 397 = 287
287 ÷ 397 = 0.7229219143576826
0.7229219143576826 x 100 = 72.29%