You'll have to be sure that those being counted are actually members of the PTO though. If you pay dues to be a member, and some of those present weren't paid members, then you haven't met your quorum quota.
In essence, if 10 people were present and only 7 were on record as being paid members, then you don't have a quorum. Our bylaws say that there is to be a current list of members available at each meeting. This is good in case votes need to be counted, we can be sure that all those voting are eligible to do so.
Here is a reference more to the point: "If the officers are members of the assembly-as they usually are in ordinary societies- they are counted in determining whether a quorum is present." (RRNR pg. 21)
RRO says "The quorum of a body of delegates, unless the by-laws provide for a smaller quorum, is a majority of the number enrolled as attending the convention, not those appointed."
unless your exec bd is not allowed to vote, and they are at the meeting, then seems youre fine to count them in the quorum count.
Our bylaws state that at General Assembly meetings we need "10 voting members present to constitute a quorum". We don't always have a big turn out at our monthly meetings. A member stated that the Executive Board does not count when counting up voting members for the quorum. Is that true? We have 4 members on our Executive Board, so if 10 of us show up and 4 of us are Board members, do we have a quorum?
Thanks.