542% is the change from 100 to 642
Calculation steps:
[( 642 - 100 ) ÷ 100] x 100 = 542%
Formula
Percentage change = [(642 - 100) / 100] x 100
Subtract the new number by the original number
642 - 100 = 542
542 ÷ 100 = 5.42
5.42 x 100 = 542%
Example