Currency in Godwars is based on copper pieces as a base unit. It is automatically rounded into the largest currency units as you gain more copper pieces.
Rhodium (rp) - This is the most valuable precious metal, worth 10,000 copper pieces.
Platinum (pp) - Worth 1,000 copper pieces.
Gold (gp) - Worth 100 copper pieces.
Silver (sp) - Worth 10 copper pieces.
Copper (cp) - The base currency coin.
You will always be displayed the currency you hold converted into the largest coin so, for if example you had a large fortune of 1,952,784 copper pieces you would actually see that you hold 195 Rhodium, 2 Platinum, 7 Gold, 8 Silver and 4 Copper pieces.