This is the P/L to Betfair SP if you were to lay all the selections and will include commission if you have set any.
i.e. if you lay a 10/1 shot and it wins -10pts would be taken off this total but if it lost then 1pt minus commission would be added to this total.
NOTE:This is settled on a per market so if you are laying more then one horse in a race then the commission is calculated correctly.