59.41% is the change from 340 to 542
Calculation steps:
[( 542 - 340 ) ÷ 340] x 100 = 59.41%
Formula
Percentage change = [(542 - 340) / 340] x 100
Subtract the new number by the original number
542 - 340 = 202
202 ÷ 340 = 0.5941176470588235
0.5941176470588235 x 100 = 59.41%