Exercise 8.10 (Algo) Estimating Inventory by the Retail Method (LO8.6) Philips. Supply uses a periodic inventory system but needs to determine the approadate amount of thiventory at the end of erich menth without taking a ptysical irventory. Ptwillips has provided the following inwentory data. a. Esimate the cost of goods 2 decimal places.) Exercise 8.10 (Algo) Estimating Inventory by the Retail Method (LO8.6) Philips. Supply uses a periodic inventory system but needs to determine the approadate amount of thiventory at the end of erich menth without taking a ptysical irventory. Ptwillips has provided the following inwentory data. a. Esimate the cost of goods 2 decimal places.)