26.45% is the change from 397 to 502
Calculation steps:
[( 502 - 397 ) ÷ 397] x 100 = 26.45%
Formula
Percentage change = [(502 - 397) / 397] x 100
Subtract the new number by the original number
502 - 397 = 105
105 ÷ 397 = 0.26448362720403024
0.26448362720403024 x 100 = 26.45%