Making sure you have enough gold for the next big dragon level is important before you begin speeding your upgrades along. I have made guides on the upgrade costs of all dragon levels in Infinity Kingdom. Please see my article collection here: Dragon Upgrades
When you know what you wanna upgrade, you need to know if you can afford it! Therefore, I have made this little tool to help you calculate the amount of gold you have available in your inventory.
Calculate ressource totals