Since this is a guide about maintaining a food stall, there will be chapters where Marron needs to price her menu and feed customers :)
This is a handy guide for you (and me!) for consistency.
Currency Conversion Rates:
100 bronze coins makes 1 silver.
1 silver = 10 bronze coins.
100 silver coins makes 50 gold.
1 gold = 2 silver
2 silver = 20 bronze
1 crystal = 1000 gold
Ex. 200 gold coins
Using Only Silver:
1 gold = 2 silver.
200 gold = 200 × 2 = 400 silver coins
Using Only Bronze:
1 gold = 20 bronze →
200 gold = 200 × 20 = 4,000 bronze coins
Using Crystals:
1 crystal = 1000 gold
So, 200 gold = 0.2 crystals