Query about missing $20 on demo trading summary

Hi, just a query about the trading summary on my demo account ( I am about to go live next week)

The total P/L is $160.48
This is reduced to $140.48 without any clear indication why (highlighted)

furthermore when I went through the trading record and added it up manually, I got $165.40

do you know why there are aparent discrepancies ? Perhaps I have missed something else ?

(and why is there a $5.72 swap charge on there ? )

thankyou

Johnny