Currency

Currency is measured via Silver coins, cut into various sizes.
They're known by varying names across different nations, but for the sake of the system the tiers go like this.
1 Gold Ducat (Gd) = 12 Silver Ducats ($144)
1 Silver Ducat (Sd) = 12 Copper Ducats ($12)
1 Copper Ducat (Cd) = 1kg Wheat Grain, $1 USD (Roughly)