The CMS Meaningful Use Reporting may display a numerator that is greater than the denominator, which represents a percentage greater than 100. The numerator is counting each visit in which vital signs are recorded, while the denominator is counting only unique patients. If you see a patient more than once during the reporting period and record vital signs each time, that patient is being counted each time in the numerator, but not the the denominator.
Since the attestation system will not allow you to enter a numerator that is larger than its denominator, report the number returned for the denominator in the calculations as the numerator and denominator. This will give you a 100% percentage. Depending on your practice, the calculator probably isn't double counting too many patients. The threshold for completing the measure is only 50%, so it's pretty clear that you are exceeding that.
If you are audited, send this article to the auditor to explain the anomaly.
This is a known issue, and we are working to resolve it in a future version of OfficeMate/ExamWRITER.