| Permissible Values | F | DED INC AMT APPLIES, DOES NOT VARY WITH INC [Calculated under NEW proportional method applies to Provider CSS] |  |  | 
            
                
                    
                    | I | DED INC AMT APPLIES, VARIES WITH INC [Calculated under NEW proportional method, changes with indexation] |  |  | 
            
                
                    
                    | O | DED INC AMT CALCULATED USING UPP [Calculated under the OLD method based on Undeducted Purchase Price] |  |  | 
            
                
                    
                    | S | SAVED FROM NEW RULES [Applies if the customer meets the criteria for the savings provision] |  |  | 
            
                
                    
                    | Z | DED INC AMT NOT APPLICABLE  [Tax Free Component (Deductible amount) is zero] |  |  |