How is rare loot calculated for a chest?

[sultanica]

How is rare loot calculated for a chest?

Example:
The sands chests where the bloodstone drops.
The most common drop seems to be the dusk heart.
How is it that item drops more often than say a bloodstone?

whats the rare loot formula?

[TheDjinnFor]

How is rare loot calculated for a chest?

Example:
The sands chests where the bloodstone drops.
The most common drop seems to be the dusk heart.
How is it that item drops more often than say a bloodstone?

whats the rare loot formula?

From what I understand it's arbitrary for each item. Bloodstone, for example, is like less than a quarter of a percent (or something equally as ridiculous). There's no real formula that you can break out for all items, or even a general pattern, unless the pattern is more or less "more valuable = rarer".