80.1% is the change from 397 to 715
Calculation steps:
[( 715 - 397 ) ÷ 397] x 100 = 80.1%
Formula
Percentage change = [(715 - 397) / 397] x 100
Subtract the new number by the original number
715 - 397 = 318
318 ÷ 397 = 0.801007556675063
0.801007556675063 x 100 = 80.1%