Shrinkage Calculation Anomaly in EU-West BYOC WFM Module

Just noticed that the Shrinkage metric in the EU-West BYOC Workforce Management module is reporting negative values for scheduled breaks. The Performance Dashboard shows -5% shrinkage, which contradicts the standard definition. This discrepancy affects our service level calculations significantly. How is the shrinkage formula adjusted for BYOC environments, and why would scheduled breaks result in a negative percentage?