68.94% is the change from 235 to 397
Calculation steps:
[( 397 - 235 ) ÷ 235] x 100 = 68.94%
Formula
Percentage change = [(397 - 235) / 235] x 100
Subtract the new number by the original number
397 - 235 = 162
162 ÷ 235 = 0.6893617021276596
0.6893617021276596 x 100 = 68.94%