Drop Chance

Drop Chance or odds is the in-game denotation of how common a drop is from a Mob. Currently only Slayer related boss drops have their drop chance listed in the game (when viewed from the slayer menu).

Some items other than slayer drops also have known drop chances.

Slayer
These odds listed Here are for slayer bosses.

Increasing the chances
All drop chances are affected by. Additionally, non-slayer drops are affected by the Enchantment. The final drop chance can be calculated using the following formula:

$$\text{Base Chance} \times (1 + \text{Magic Find Bonus} + (\text{Luck Level} \times 0.05))$$

Example

 * Information
 * Item: Weak Wolf Catalyst
 * Base Chance: 1 in 200 =  =
 * Luck Level: 6
 * Luck Level: 6


 * Calculations
 * $$0.005 \times (1 + 0.8 + 6 \times 0.05) = 0.005 \times (1.8 + 0.3) = 0.005 \times 2.1 = 0.0105 = 1.05%$$