78.09% is the change from 397 to 707
Calculation steps:
[( 707 - 397 ) ÷ 397] x 100 = 78.09%
Formula
Percentage change = [(707 - 397) / 397] x 100
Subtract the new number by the original number
707 - 397 = 310
310 ÷ 397 = 0.7808564231738035
0.7808564231738035 x 100 = 78.09%