Proposal records created on constituent records have the fields of Rating and Date Rated (if the RE: Search module is present). This solution describes these fields.
The Rating field is provided to record the understood chance of success with the proposal in being funded / completed. The ratings values are set up on the Ratings code table under Tables in Configuration. Some sample values can be Hesitant / Excellent / Needs Cultivating / Very Good. Other values can be ranges like Low / Medium / High or a numeric scale such as 0 (meaning not likely at all) to 5 (most likely).
The Date Rated should be updated when adding a Rating.