經歷2021年8月6號至8月9號的暴跌之後，這幾天黃金呈現一個上漲趨勢，目前的價格是停在1776.96美元，有點上不去的感覺。從最近的走勢圖看起來，紅圈的價位好像是一個關卡。

After experiencing the plunge from August 6 to August 9, 2021, gold has shown an upward trend in the past few days. The current price is stopped at $1,776.96, which makes it a bit unable to rise. From the recent trend chart, the price of the red circle seems to be a barrier.

為了避免損失持續擴大，可可決定將暴跌以後買的黃金先行賣出，先入袋為安。

In order to prevent the loss from continuing to expand, Coco decided to sell the gold he bought after the plunge, and put it in the bag first.

可可在2021年8月9日以175.35美元買進黃金，2021年8月16日177.21美元賣出，7天獲利1.86美元，看起來不怎麼好賺。另外，發現了最底部的總結公式應該有設定錯誤，剩餘金額應該誤加成賣價金額。

Cocoa bought gold at $175.35 on August 9, 2021, and sold it at $177.21 on August 16, 2021. It made a profit of $1.86 in 7 days. It doesn’t seem to be very profitable. In addition, I found that the bottom summary formula should have a setting error, and the remaining amount should be mistakenly added to the selling price amount.

修正了公式，在持續測試看看，看是否能找到更精準的公式。可可預測，這幾天應該會在暴跌一次，先做紀錄。END

The formula has been revised, and we will continue to test to see if we can find a more accurate formula. Cocoa predicts that there will be a plunge in the past few days, first make a record