The National Schools Purchasing Forum (NSPF) is a procurement organisation that purchases goods and services on behalf of schools on a national scale. NSPF is close to concluding negotiations in a meeting with Hygienics For All (HFA) for the supply of consumables to school washrooms. Both parties have reached an agreeable position, and NSPF feels it is important that they conclude the negotiation at this point. What type of questions should NSPF ask HFA to achieve this?