Instructions

On the right side, enter the current price of APEX on the auction house. On Unchained, you can see the item's price converted back to Euros.

When you enter the amount of credits, it will automatically calculate the amount of gold you can get for such items from the marketplace.

If you see the items on AH cheaper than your result, it's worth to buy those directly instead of spending credits on them.

On the bottom, you can select the credit pack you have purchased, and you will see the item's price converted to Euros.