47.09% is the change from 344 to 506
Calculation steps:
[( 506 - 344 ) ÷ 344] x 100 = 47.09%
Formula
Percentage change = [(506 - 344) / 344] x 100
Subtract the new number by the original number
506 - 344 = 162
162 ÷ 344 = 0.47093023255813954
0.47093023255813954 x 100 = 47.09%