42.07% is the change from 397 to 564
Calculation steps:
[( 564 - 397 ) ÷ 397] x 100 = 42.07%
Formula
Percentage change = [(564 - 397) / 397] x 100
Subtract the new number by the original number
564 - 397 = 167
167 ÷ 397 = 0.42065491183879095
0.42065491183879095 x 100 = 42.07%