A share of the sales, profits, gross margin or similar.
The amount, number or rate of something, regarded as part of a total of 100; a part of a whole.
Benefit or advantage.
A portion of some limited resource allocated to a person or group.
To supply with a ration; to limit (someone) to a specific allowance of something.
To restrict (an activity etc.)
To portion out (especially during a shortage of supply); to limit access to.