50.13% is the change from 397 to 596
Calculation steps:
[( 596 - 397 ) ÷ 397] x 100 = 50.13%
Formula
Percentage change = [(596 - 397) / 397] x 100
Subtract the new number by the original number
596 - 397 = 199
199 ÷ 397 = 0.5012594458438288
0.5012594458438288 x 100 = 50.13%