INPUT DATA KEY OUTPUT: Phase 4 Hospital Costs: Contract volume Marginal variable cost (vari Average Marginal fixed cost Category Cost Total contract marginal cos Average cost per contract t Nursing Ancillary Note: The model assumes that radiology, drug, and other cost OR are completely variable, while the remaining cost categories Laboratory consist of both fixed and variable costs. Radiology Drug Other Total New contract (marginal) volume Current proportion of fixed costs for 0.0% categories that have both fixed and