52.39% is the change from 397 to 605
Calculation steps:
[( 605 - 397 ) ÷ 397] x 100 = 52.39%
Formula
Percentage change = [(605 - 397) / 397] x 100
Subtract the new number by the original number
605 - 397 = 208
208 ÷ 397 = 0.5239294710327456
0.5239294710327456 x 100 = 52.39%