57.89% is the change from 342 to 540
Calculation steps:
[( 540 - 342 ) ÷ 342] x 100 = 57.89%
Formula
Percentage change = [(540 - 342) / 342] x 100
Subtract the new number by the original number
540 - 342 = 198
198 ÷ 342 = 0.5789473684210527
0.5789473684210527 x 100 = 57.89%