54.73% is the change from 349 to 540
Calculation steps:
[( 540 - 349 ) ÷ 349] x 100 = 54.73%
Formula
Percentage change = [(540 - 349) / 349] x 100
Subtract the new number by the original number
540 - 349 = 191
191 ÷ 349 = 0.5472779369627507
0.5472779369627507 x 100 = 54.73%