49.71% is the change from 346 to 518
Calculation steps:
[( 518 - 346 ) ÷ 346] x 100 = 49.71%
Formula
Percentage change = [(518 - 346) / 346] x 100
Subtract the new number by the original number
518 - 346 = 172
172 ÷ 346 = 0.49710982658959535
0.49710982658959535 x 100 = 49.71%