Need to customize pricing based on Custom Field values on Bill Line Object

Summary: We have a requirement to drive pricing based on Custom Field values on Bill Line Object.

Content (required):

I.e.We have one custom field named "X" on Bill line object. If the input to this field is "No" then the bill line amount should be (Price+ Adjustment of 10% markup)

Please provide some documentation to customize Sales Service mapping under pricing administration to achieve this requirement.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):