34.76% is the change from 397 to 535
Calculation steps:
[( 535 - 397 ) ÷ 397] x 100 = 34.76%
Formula
Percentage change = [(535 - 397) / 397] x 100
Subtract the new number by the original number
535 - 397 = 138
138 ÷ 397 = 0.34760705289672544
0.34760705289672544 x 100 = 34.76%