38.95% is the change from 344 to 478
Calculation steps:
[( 478 - 344 ) ÷ 344] x 100 = 38.95%
Formula
Percentage change = [(478 - 344) / 344] x 100
Subtract the new number by the original number
478 - 344 = 134
134 ÷ 344 = 0.38953488372093026
0.38953488372093026 x 100 = 38.95%