35.2% is the change from 642 to 868
Calculation steps:
[( 868 - 642 ) ÷ 642] x 100 = 35.2%
Formula
Percentage change = [(868 - 642) / 642] x 100
Subtract the new number by the original number
868 - 642 = 226
226 ÷ 642 = 0.35202492211838005
0.35202492211838005 x 100 = 35.2%