How do I calculate and estimate running costs for an AS solution I'm selling?
Start by separating fixed and variable costs. Fixed costs are recurring subscriptions (software, mailboxes, etc.)—list them and sum. Variable costs depend on usage: OpenAI API tokens, Apify scraping, etc., which fluctuate month to month. Estimate variable costs based on expected usage, acknowledging they're outside direct control. Total cost = fixed sum + variable range (error bars). Example: fixed ~$177/month, variable ±$55/month. Avoid absorbing these costs yourself; the high value you deliver justifies fees, and if clients balk at a small percentage, reconsider the fit.