48.87% is the change from 397 to 591
Calculation steps:
[( 591 - 397 ) ÷ 397] x 100 = 48.87%
Formula
Percentage change = [(591 - 397) / 397] x 100
Subtract the new number by the original number
591 - 397 = 194
194 ÷ 397 = 0.48866498740554154
0.48866498740554154 x 100 = 48.87%