The 5 Most Common Inventory Management Questions, Answered

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Inventory accuracy rate, reorder point, inventory turnover ratio, dead stock, and carrying costs are the five questions operators ask most. Here's how to calculate each one, what a healthy benchmark looks like, and how weekly structured counting keeps the underlying numbers accurate in the first place.

What Is My Inventory Accuracy Rate and How Do I Calculate It?

Inventory accuracy rate compares what your system says you have against what a physical count actually finds. The formula is straightforward:

Metric	Formula
Inventory Accuracy Rate	(1 - |Counted Qty - System Qty| / System Qty) x 100

A rate of 95% or higher is generally considered strong for small operators. Accuracy tends to drift downward the longer you go between physical counts, since every uncorrected error compounds until the next count catches it. This is the core reason a consistent weekly counting rhythm matters more than an occasional deep audit: errors get caught and corrected before they accumulate into a bigger discrepancy.

How Do I Calculate and Optimize My Reorder Point (ROP)?

Reorder point is the stock level that should trigger a new order, calculated from how fast you use an item and how long it takes to get more.

Metric	Formula
Reorder Point (ROP)	(Average Daily Usage x Lead Time in Days) + Safety Stock

Safety stock is a buffer quantity to cover unexpected demand spikes or supplier delays, typically a few days' worth of usage for A-priority items and less for slower movers. Optimizing your ROP means revisiting it periodically as usage patterns shift, an item that sold steadily in spring may need a different reorder point during a seasonal rush.

What Is My Inventory Turnover Ratio, and What's a Good Benchmark?

Inventory turnover ratio measures how many times you sell through and replace your stock over a given period.

Metric	Formula
Inventory Turnover Ratio	Cost of Goods Sold (COGS) / Average Inventory Value

Benchmarks vary meaningfully by vertical. Cafes typically see turnover ratios in the 40-80 range, while restaurants often run higher, in the 50-100+ range, reflecting faster-moving perishable stock. A ratio well below your vertical's typical range usually points to overstocking or slow-moving items tying up cash, while an unusually high ratio can signal you're understocked and risking stockouts.

How Do I Identify and Reduce Dead Stock?

Dead stock is inventory that hasn't moved in a meaningful stretch of time, commonly defined as zero or near-zero usage over the past 90 days. The fastest way to spot it is comparing each item's usage history against its on-hand quantity, if stock is sitting flat while usage stays at zero, it's a candidate for markdown, bundling, return to vendor, or simply discontinuing the SKU.

Reducing dead stock going forward comes down to catching the slowdown early rather than discovering it at a quarterly count. An item showing a rolling multi-week usage average of zero is a clear early warning sign, well before it becomes a shelf full of unsold product.

What Are My True Inventory Carrying Costs?

Carrying costs are everything it costs you to hold inventory before it sells, not just what you paid for it.

Cost Category	What It Includes
Storage	Rent/space allocated to holding stock, shelving, refrigeration if applicable
Insurance	Coverage tied to inventory value
Depreciation/Spoilage	Value lost to obsolescence, expiration, or damage
Opportunity Cost	Cash tied up in stock that could be used elsewhere

As a widely used industry rule of thumb, total carrying costs often run somewhere around 20-30% of total inventory value annually across categories, though this varies by business type and how perishable the stock is. The practical takeaway: money sitting in slow-moving inventory has a real, ongoing cost, not just a purchase price.

How Does Weekly Counting Improve These Numbers?

All five of these metrics depend on one thing: knowing what you actually have, accurately and often. A monthly or quarterly count means accuracy rate, dead stock, and reorder points are only ever as current as your last count, weeks-old data driving today's decisions. A consistent weekly counting rhythm keeps the underlying numbers current enough to act on, rather than discovering a reorder point was wrong or a SKU went dead a month after it happened.

FAQ

What's considered a good inventory accuracy rate?

95% or higher is generally considered strong for small operators. Below that, discrepancies are likely compounding between counts.

How often should I recalculate my reorder points?

Whenever usage patterns shift meaningfully, seasonal changes, new products, or supplier lead time changes are all reasons to revisit your ROP rather than treating it as fixed.

What counts as dead stock?

Most operators use a 90-day window: if an item has had zero or near-zero usage in that time, it's a candidate for markdown, return, or discontinuation.

Are carrying costs the same for every business?

No. Perishable-heavy businesses (cafes, restaurants) tend to have different carrying cost profiles than businesses with shelf-stable retail goods, mainly driven by spoilage/depreciation risk.