Store item tables

[RogerRackham]

I was trying to find the chance of a given weapon to show up in a store but I am having trouble figuring out how things are chosen to show up in a store. I know everything has a rarity value and that different things can affect that value (Sector, if you have shields, if you have a medbay, if the store has drones) but how does the game use that value to make a choice? I was kinda hoping it would be a simple percentage but I dont see that discussed anywhere in detail. For example, how would I determine the percentage chance of a weapon showing up? For example a Flak Gun I.

[RogueSquadron]

Try posting this in the FTL forums: https://subsetgames.com/forum/viewforum.php?f=1