33.67% is the change from 297 to 397
Calculation steps:
[( 397 - 297 ) ÷ 297] x 100 = 33.67%
Formula
Percentage change = [(397 - 297) / 297] x 100
Subtract the new number by the original number
397 - 297 = 100
100 ÷ 297 = 0.3367003367003367
0.3367003367003367 x 100 = 33.67%