22.97% is the change from 344 to 423
Calculation steps:
[( 423 - 344 ) ÷ 344] x 100 = 22.97%
Formula
Percentage change = [(423 - 344) / 344] x 100
Subtract the new number by the original number
423 - 344 = 79
79 ÷ 344 = 0.22965116279069767
0.22965116279069767 x 100 = 22.97%