Many if not all admissions software programs have a rating system for high schools and assign a number (so, for ex, the highest competitive college prep school would have a number like 99.5). Whether that number is based on the college’s own input or the system’s assessment, I do not know. And whether or not AOs use this rating in their deliberations probably depends on the school. But they have the information at a quick glance (in addition to having the HS report / class profile).