51.89% is the change from 397 to 603
Calculation steps:
[( 603 - 397 ) ÷ 397] x 100 = 51.89%
Formula
Percentage change = [(603 - 397) / 397] x 100
Subtract the new number by the original number
603 - 397 = 206
206 ÷ 397 = 0.5188916876574308
0.5188916876574308 x 100 = 51.89%