Difference between Case Fill rate Line item fill rate?

In a retail store scenario: Line Fill: Ratio between the number of SKU's received at a store and the number of SKU's to be received. SKU's allocated is say 3500 sku's SKU's received are 1050 Line fill is 1050/3500 x 100 = 30% Case Fill: Ratio between the number of pieces that are received against an SKU/Department to the number of pieces that are allocated. No: of pieces allocated for SKU 1234 is 144 No: of pieces received is 36 Case fill is 36/144 x 100 = 40% Line fill is discussed at the store level. Case fill is discussed at the SKU/Department level.