The math is transparent here on purpose. Every service shows its live per-1K price and its wholesale route, so you can compute your margin before quoting a client. For example: if a service costs you $X per 1K and you charge the client $Y, the difference is your margin — the panel never hides the $X.
Fulfillment is gradual wholesale delivery with visible statuses and refill terms, so you can answer client questions with facts instead of guesses.