Pandle's Items tool has adopted the First In First Out system (FIFO). This means that as you sell your stock items and equipment, the value of the stock will reduce by the value of the first item you purchased.
For example, let’s say you buy one clock for £100, and you later buy the same clock for £110. This item’s stock value will be a total of £210.
If you then sell 1 clock, the value of the stock will reduce to £110. This is because Pandle assumes that the clock you sold was the first one you bought, so it reduces the stock value by that item's value.
In short, the first stock item you bought was the one you sold, leaving the second item (at the later price) still in stock.