22.74% is the change from 642 to 788
Calculation steps:
[( 788 - 642 ) ÷ 642] x 100 = 22.74%
Formula
Percentage change = [(788 - 642) / 642] x 100
Subtract the new number by the original number
788 - 642 = 146
146 ÷ 642 = 0.22741433021806853
0.22741433021806853 x 100 = 22.74%