70.39% is the change from 233 to 397
Calculation steps:
[( 397 - 233 ) ÷ 233] x 100 = 70.39%
Formula
Percentage change = [(397 - 233) / 233] x 100
Subtract the new number by the original number
397 - 233 = 164
164 ÷ 233 = 0.703862660944206
0.703862660944206 x 100 = 70.39%