Hi there!!!!
Do not take the tittle for granted, as 'industry' states... I know you can make 'low profit' with the food... fish mostly...
But meanwhile we gathered enough fish to upgrade the fish places, we could use an alternative... besides, the tailor and blacksmith are completed before develop the full fishing...
I thought about go to the mountains and mine Mithrill but the traveling and obedience can be a problem and is more efficent to do dungeon missions...
I think the 'finished products' can be quite more pricy... I mean when I buy a leather armor (just leather) the price is good for buying for not for selling...
EXPLANATION:
I roughly dare to say that the 'material' to craft the armor is more profiteable than the product... is more benefical to sell the material than the armor/weapon made...
I would like to the selling prices for armors to increase a little so it can past the individual raw material' price... SO the weapons...
ONLY FOUND EXAMPLE... (Tips for the one who reads this)
Club (Rock) - 6 stone (30 gold)
Final selling price Stone Club (60 gold)
Club (Wood) - 6 wood (60 gold)
Final selling price Wooden Club (80 gold)
Note: The wood and stone are fairly enough to get, but they are often needed for upgrades... (Do goblin dungeons to get a small amount)
Some more like theses examples... just a few coins to do an (INDUSTRY...)
ANY MORE TIPS ABOUT GOLD ECONOMY WOULD BE WELCOME...