Here are the just released FY18 Staff Corps promotion board members and convening order, which states that the promotion opportunity is 80%. Below is the section of my Promo Prep document that explains how promotion board math works, because this does not mean you have an 80% chance of promoting. That said, it is the highest its been in a long time:
WHAT ARE MY CHANCES OF PROMOTING?
See the tables below for the actual promotion statistics.
Promotion opportunity. This percentage is multiplied by the zone size to give the number of officers to be selected for promotion. For example, if the promotion opportunity is 60% and there are 100 officers in-zone, then 60 will be selected for promotion. This 60, however, may come from officers who are below-zone, in-zone, or above-zone. For example, maybe 50 of the 60 are in-zone, and 10 are above-zone. That is why the percentage of people in-zone who are selected for promotion is always lower than the promotion opportunity. See below…
Actual percentage of in-zone candidates selected for promotion.