Currency Break Down

Currency follows the same old system for dnd 5e with the currency mapped to these values are from least to greatest. 

• Standard Earth Dollar, Value: 1, example: 1,000 SED - The United Earth Sphere unified it's currency in an attempt to aid the economic shock of the first wave. Creating the Standard Earth Dollar. The bills were once colored gold, but as inflation skyrocketed it was often mocked for being copper plated instead of gold, leading to its common nickname, coppers.
• Defense Bond, Value: 10, Example 100 DB - First issued during the battle for mars the Martian Defense Front  released the standard Defense Bond or DB often stored as digital currency or rarely as paper slivers, sometimes earning them the nickname "Slivers of Silver". A single DB is worth 10 SED.
• Celestial Connection Credits AKA C3, Value 100, Example 10 C3 - Called Celestial Connection Credits or just C3, they are used as a universal trade sum within the Celestial Connection and due to their stable value and ease of transfer have become the most common trade currency in free space. C3 is held digitally or often using gold cards resulting in it sometimes being called gold. One credit is worth 100 Earth Sphere Dollars
• Standard Credits, Value 1000, Example 1 SC - Currency is the Human Elevation Foundation is controlled heavily in units called Standard Credits or SC. Their value is matched to platinum earning them the moniker of Plats. 1SC is worth 1000 Earth Dollars, as such is it often broken down into decimal units during transfers for goods.