28.82% is the change from 642 to 827
Calculation steps:
[( 827 - 642 ) ÷ 642] x 100 = 28.82%
Formula
Percentage change = [(827 - 642) / 642] x 100
Subtract the new number by the original number
827 - 642 = 185
185 ÷ 642 = 0.2881619937694704
0.2881619937694704 x 100 = 28.82%