Estimate only. Interchange, card association, dues & assessments are pass-through (billed at cost) and vary by card type — set your blended assumption under Advanced. Markup uses the referral schedule: 0.09% Visa/MC/Disc volume · 0.15% Amex · $0.09 auth/txn · $0.02 gateway/txn · $15 platform/mo · $12 first lane/mo · $5 each additional lane. Your residual is your rev-share tier applied to that markup.