48.26% is the change from 344 to 510
Calculation steps:
[( 510 - 344 ) ÷ 344] x 100 = 48.26%
Formula
Percentage change = [(510 - 344) / 344] x 100
Subtract the new number by the original number
510 - 344 = 166
166 ÷ 344 = 0.48255813953488375
0.48255813953488375 x 100 = 48.26%