Star Wars Knights of the Old Republic II: The Sith Lords/Upgrade items

Lab Station
When breaking down items, the rank of the character using the lab station determines how many chemicals are granted. Rank < 1 grants just one chemical, while rank > 0 grants a percentage of the item's chemical cost:

Once any character has rank > 19, items can be created safe in the knowledge that they can always be broken down again without losing any chemicals. This means lesser items can be created and used rather than hoarding chemicals until a character has sufficient skill rank and chemicals to create the best items.

Only items that can be created using character's skill rank +8 are displayed. Items are created using the skill rank of the character using the lab station.

Workbench
When breaking down items, the main player character's current rank determines how many components are granted, regardless of which character is actually using the workbench. Rank < 1 grants just one component, while rank > 0 grants a percentage of the item's component cost:

Once a main player character has rank > 19, items can be created safe in the knowledge that they can always be broken down again without losing any components. This means lesser items can be created and used rather than hoarding components until a character has sufficient skill rank and components to create the best items.

Only items that can be created using character's skill rank +8 are displayed. Items are created using the skill rank of the character using the workbench.