24k gold plated wholesale jewelry with jade buddha Will stock supplementary positions reduce costs?

24k gold plated wholesale jewelry with jade buddha I bought Handan Iron and Steel for one hundred shares at 8,25 and 8,95, and the cost per share was 8,6. Today, it sold a hundred shares at 9.6, but the remaining one hundred shares per share were displayed on the account. The price is 7,861, why