Final answer:
The question is related to the percentage of cases the Air Force Board Correction of Military Records (AFBCMR) must complete within 10 months after FY 2010, but the specific percentage is not provided in the question.
Step-by-step explanation:
The question refers to the efficiency and timing of applications processed by the Air Force Board Correction of Military Records (AFBCMR). Since the student is asking about a percentage related to cases completion within a specified frame post FY 2010, it is not provided in the question, so it's important to note that an accurate answer cannot be given without additional information. The AFBCMR handles the amendment of military records, and any changes in policy or targets for processing times would typically be sourced from official Air Force or Department of Defense directives or memorandums.