642% is the change from 100 to 742
Calculation steps:
[( 742 - 100 ) ÷ 100] x 100 = 642%
Formula
Percentage change = [(742 - 100) / 100] x 100
Subtract the new number by the original number
742 - 100 = 642
642 ÷ 100 = 6.42
6.42 x 100 = 642%
Example