50.88% is the change from 397 to 599
Calculation steps:
[( 599 - 397 ) ÷ 397] x 100 = 50.88%
Formula
Percentage change = [(599 - 397) / 397] x 100
Subtract the new number by the original number
599 - 397 = 202
202 ÷ 397 = 0.5088161209068011
0.5088161209068011 x 100 = 50.88%