Choosing best options with multiple criteria

I'm not sure if this is the best place to post this and not sure the title is helpful but here is my issue.

I need to find the best combination of options to provide the highest amount of points.

There are 19 options, all with a different point value. All of these options is also assigned a cost. There are two limiting factors, the total cost of the options cannot exceed a given number, and you can only choose a maximum of 8 options. How do you determine the 8 best options that provide the highest number of points? If there a formula or tool that can be used to calculate highest number of points available given the criteria and what options they are?

Max No Options = 8 Total Cost cannot exceed 22,000