inventory Methods under the Perlotic inventory system The actial matrit unts femaking at May 3 t aeie purthased on the folowing dstes: Bequired (t) Foecific adentication (1) Soevitidentification. Q) avelage cost iperibdic inveriory aystem: *fece. Da not use nezative sistris with any of your anwererh. fobin Incis inventory records show the following data for purchases and sales of units. The actual ending units remaining at May 31 were purchased on the following dates: Required Assuming that Robin maintains a periodic inventory system with a monthly physical count, compute ending inventory on May 31 under (1) specific identitication, (2) (1) Specific identification - Note: Do not use negative signs with any of your answers. (2) average cost (periodic inventory system) - Note: Use the result EXACTLY as displayed above in the calculations below. - Note: Do not use negative signs with any of your answers. (2) average cost (periodic inventory system) - Note: Use the result EXACTLY as displayed above in the calculations below. - Note; Do not use negative signs with any of your answers. (3) FIFO (periodic inventory system). - Note: Do not use negative signs with any of your answers. (4) LIFO (periodic inventory system). - Note: Do not use negative signs with any of your answers