Thanks for your reminder. I am<a href="http://geifgfnaf.com"> cruefal</a> in portfolio calculation, but there are sometimes typo errors in my blog, because I am too tired to write it each day.The selling price of 811 and 1288 on that day should be $3.4 and $3.22. Note that the lowest trading price of 811 on that day is $3.38, therefore it is possible to sell it at $3.25.I have corrected these mistakes in my blog. I must double check my blog contents in the future. Thanks again.