Days’ Sales in Inventory (DSI) is an important measure of a business’s ability to convert their inventory into sales. It provides insight into how long it typically takes for an organization to turn their stock into revenue, as well as how much inventory they have on hand at any given time. DSI also helps businesses track their sales and inventory, allowing them to more effectively manage their resources. By tracking the average time it takes for a company to sell off their inventory, they can determine whether or not they need to order more stock or have an excess of inventory that should be sold off quickly. DSI is thus an essential tool for companies looking to optimize their sales and profitability.