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9.15.2021 Acute Hospital Utilization, Emergency Department Utilization and Hospitalization for Potentially Preventable Complications When should rounding occur for variance calculations?

The variance should not be rounded until the final step in the calculation. The final variance calculation for reporting should be rounded to four decimal places using the .5 rule. For example, the PPD and PUCD values are truncated to 10 decimal places, multiplied together at the member level and summed across members for the total. Round the total sum to four decimal places.