@moneymakinggold The reason you’re at a loss on the screenshot is exactly because of the spread -> difference between SELL & BUY price.
Sure, you see the red line at $1,630.59 - that’s the SELL price visible on the left side of the gold icon/logo. Now, the SELL price is $1,625.71.
However, the concept short selling is this - you borrow something you don’t have -> sell it on the open market -> make the cash from the sell now -> buy it back a later point for a cheaper price in to return to original lender -> profit from the difference.
Example:
You borrow an 
from me & sell it to someone else for $1. However, you still owe me an .
prices drop to $0.50 & you decide your happy with the profit from the difference. You go to the markets & buy one for $0.50 which you return to me. You get to keep the difference of $0.50.
This is a very basic example of what short selling is. I’m explaining this because the last things to do before closing a position is buying back the instrument in order to return it to original lender. Thus, you have to purchase Gold for the BUY price which you can see on the screenshot is $1,636.25, above your sell price of $1,630.59.
($1,630.59 - $1,636.2) x 5000 = -$28,050 whici is approx -ÂŁ24,000.