19.47% is the change from 642 to 767
Calculation steps:
[( 767 - 642 ) ÷ 642] x 100 = 19.47%
Formula
Percentage change = [(767 - 642) / 642] x 100
Subtract the new number by the original number
767 - 642 = 125
125 ÷ 642 = 0.19470404984423675
0.19470404984423675 x 100 = 19.47%