71.28% is the change from 397 to 680
Calculation steps:
[( 680 - 397 ) ÷ 397] x 100 = 71.28%
Formula
Percentage change = [(680 - 397) / 397] x 100
Subtract the new number by the original number
680 - 397 = 283
283 ÷ 397 = 0.7128463476070529
0.7128463476070529 x 100 = 71.28%