15.41% is the change from 344 to 397
Calculation steps:
[( 397 - 344 ) ÷ 344] x 100 = 15.41%
Formula
Percentage change = [(397 - 344) / 344] x 100
Subtract the new number by the original number
397 - 344 = 53
53 ÷ 344 = 0.15406976744186046
0.15406976744186046 x 100 = 15.41%