50.29% is the change from 342 to 514
Calculation steps:
[( 514 - 342 ) ÷ 342] x 100 = 50.29%
Formula
Percentage change = [(514 - 342) / 342] x 100
Subtract the new number by the original number
514 - 342 = 172
172 ÷ 342 = 0.5029239766081871
0.5029239766081871 x 100 = 50.29%