Your break-even number, and an honest read on whether it's reachable given what customers told you.
Run my numbers with me. List my one-time startup costs and my monthly running costs, then calculate my break-even — how much I need to sell each month to cover everything. Tell me honestly whether that number looks reachable given what I heard from customers. Then write it all into my Financial Plan section, recording my monthly costs and any cash on hand as assumptions so we can re-run this later.