I am looking at one of the tickets (not flown yet):

Air transportation charges 847.99 Taxes, fees and charges 119.71 GRAND TOTAL (Canadian dollars) $967.70

Super newbie, I am trying to estimate my SQD for 2022 and I do not know if the base fare is total paid price minus taxes ($847) or if there is anything else I have to substract to find out the SQD. The ticket is PY so there are not other charges like luggage, seat etc.