Final answer:
The question does not provide enough context to determine if Hemming uses a perpetual inventory system, but in general, a perpetual inventory system records transactions in real-time, offering up-to-date inventory tracking.
Step-by-step explanation:
Whether Hemming uses a perpetual inventory system is not specified within the context of the question. However, I can explain what a perpetual inventory system is. A perpetual inventory system is an approach to inventory management where a company records the sale or purchase of inventory immediately through the use of computerized point-of-sale systems and enterprise asset management software. This system offers real-time tracking of inventory levels, providing a highly accurate picture of current stock and cost of goods sold (COGS).