Could somebody please explain to me why I am seeing -ve profit at this moment.

I sold 8 BTC on base price under $246.40 on Trailing Stop of $2 when price was $248.40 and now when price is like $246.41 I see -$7.99, I mean no matter what happens even if price goes down to $246.1 I still see -ve P/L. Why so ?

Please help me fast I want to understand this : what price will be good for my position.