Extensions by stevenbmatthews2

TCGplayer Direct & Margin Spread Engine

🛍️ Shopping

Deterministic net payout, TCGplayer Direct fee auditing, and envelope shipping margin calculator for single card sellers.

Whatnot Profit & Margin Auditor

⚡ Productivity

Deterministic fee calculator, net payout, and sudden-death auction floor tool for Whatnot sellers.