Item drop formula for Portrait of Ruin?

[SilentHeII]

I noticed that Portrait of Ruin didn't have documentation on the item drop formula.

Would a similar formula to the wiki be the key? I noticed this formula generates values within 0.01% of error from those displayed by the Gambler's Glasses.

(Base Chance)×(52+LCK)/(52×256)

e.g. Frilly Camisole has a base chance of 8 while Pudding Bucket has base chance of 4.

When I follow the formula above I get 8.59% and 4.29% respectively. I'm trying to work out if either the error is due to rounding or if there is any other change that can be made to the formula.

[LagoLunatic]

I just looked through the code, and it seems the formula is this: drop% = (base_chance (100 + (LCK 1.92))) / divisor Where:

• LCK is the controlled player's LCK value
• base_chance is the number from the enemy DNA, plus the number of Thief Rings the controlled player has equipped
• divisor is 256, minus 4 times the number of Thief Rings the controlled player has equipped

It also caps at 50% drop chance.