Rates below use the community trading convention of 1 Gem = 100 Gold = 10,000 Yen. Origins Project has not published an official exchange rate, and no Robux conversion is offered here. Treat every output as a negotiation reference, not a confirmed in-game value.

FX_TABLE = { Gold:{Gems:0.01, Yen:100}, Gems:{Gold:100, Yen:10000}, Yen:{Gold:0.01, Gems:0.0001} }
convertedAmount = amount · FX[from][to]
fairTrade = (offeredValue − convertedAmount) / convertedAmount · 100 → FAIR if ±10%, else UNDERPAY / OVERPAY
Converted Amount—
Effective Rate—
Material Value—
Deviation—