86 Calculator

Instantly quantify the financial damage when you have to ’86’ a menu item. This 86 calculator helps you see the true cost of stockouts, including lost profits and wasted ingredients.

Loss Sensitivity Analysis

Potential Sales Missed	Lost Revenue	Total Loss

This table, generated by our 86 calculator, shows how the total financial loss changes based on the number of potential sales you miss.

What is “86”?

In the restaurant and bar industry, “86” is a common slang term used to indicate that an item is no longer available. This could mean a dish is sold out, an ingredient has run out, or an item has been intentionally removed from the menu for the night. When a server is told “the salmon is 86’d,” they know not to take any more orders for it. The term is crucial for communication between the kitchen (back-of-house) and the serving staff (front-of-house) to manage customer expectations and prevent disappointment. While it might seem like simple slang, frequent use of “86” can signal underlying issues with inventory management, demand forecasting, or supplier reliability, making a tool like an 86 calculator invaluable.

Who Should Use an 86 Calculator?

Restaurant owners, kitchen managers, chefs, and bar managers should all use an 86 calculator. It’s a strategic tool for anyone responsible for the profitability and operational efficiency of a food and beverage business. By quantifying the financial impact of stockouts, it turns a seemingly minor operational issue into a concrete financial metric that can be tracked, managed, and improved. For more on tracking finances, a restaurant profit margin tool can be very helpful.

Common Misconceptions

A common misconception is that 86-ing an item is just an unavoidable part of the business. While occasional stockouts of a popular special can create a sense of scarcity and demand, frequent issues are a symptom of poor planning. Another myth is that the only cost is the missed sale. As our 86 calculator demonstrates, the true cost includes lost profit margins and the direct cost of any ingredients that were prepped and subsequently wasted, impacting your overall food cost calculator metrics.

86 Calculator Formula and Mathematical Explanation

The 86 calculator uses a straightforward formula to determine the total financial impact of a stockout. It’s a combination of opportunity cost (lost profit) and direct cost (waste).

1. Calculate Profit Margin per Dish: First, we determine the profit generated by a single sale.
   
   Formula: Profit Margin = Sale Price per Dish – Cost per Dish
2. Calculate Total Lost Revenue (Profit): Next, we quantify the total profit lost from sales that could not be made.
   
   Formula: Lost Revenue = Profit Margin per Dish × Potential Servings Missed
3. Calculate Wasted Prep Cost: This is the direct cost of ingredients for prepped items that must be discarded.
   
   Formula: Wasted Prep Cost = Cost per Dish × Wasted Prepped Units
4. Calculate Total Financial Loss: Finally, the 86 calculator sums the lost revenue and wasted costs to provide the total impact.
   
   Formula: Total Financial Loss = Lost Revenue + Wasted Prep Cost

Variables Table

Variable	Meaning	Unit	Typical Range
Cost per Dish	Cost of ingredients for one serving.	USD ($)	$2 – $15
Sale Price per Dish	Menu price for one serving.	USD ($)	$10 – $50
Potential Servings Missed	Number of sales lost due to stockout.	Units	5 – 100
Wasted Prepped Units	Prepped servings that must be thrown away.	Units	0 – 20

Practical Examples (Real-World Use Cases)

Example 1: The Friday Night Fish Special

A restaurant offers a “Pan-Seared Halibut” special on a busy Friday night. They run out of halibut mid-service.

• Inputs for 86 calculator:
  • Cost per Dish: $8.00
  • Sale Price per Dish: $28.00
  • Potential Servings Missed: 15
  • Wasted Prepped Units: 3 (three portions were prepped and couldn’t be used)
• 86 Calculator Output:
  • Profit Margin per Dish: $20.00
  • Lost Revenue: $20.00 * 15 = $300.00
  • Wasted Prep Cost: $8.00 * 3 = $24.00
  • Total Financial Loss: $324.00
• Interpretation: The restaurant didn’t just miss out on sales; it lost over $300 in a single evening on one item. This highlights a need for better demand forecasting for specials.

Example 2: The Sunday Brunch Avocado Toast

A popular café runs out of avocados during the peak of Sunday brunch service.

• Inputs for 86 calculator:
  • Cost per Dish: $2.50
  • Sale Price per Dish: $14.00
  • Potential Servings Missed: 30
  • Wasted Prepped Units: 0 (avocados were cut to order)
• 86 Calculator Output:
  • Profit Margin per Dish: $11.50
  • Lost Revenue: $11.50 * 30 = $345.00
  • Wasted Prep Cost: $0.00
  • Total Financial Loss: $345.00
• Interpretation: Even with zero waste, the opportunity cost is significant. Running out of a staple item points to a failure in basic inventory control. Using an 86 calculator provides the data to justify ordering more avocados or finding a more reliable supplier.

How to Use This 86 Calculator

Using our 86 calculator is simple and provides instant insights into your restaurant’s financial health.

1. Enter Cost per Dish: Input the total cost of all ingredients used to make a single serving of the menu item.
2. Enter Sale Price per Dish: Input the price you charge customers for the item on your menu.
3. Enter Potential Servings Missed: Estimate how many more units of the item you realistically could have sold during the service if you hadn’t run out.
4. Enter Wasted Prepped Units: Input the number of servings that were already prepared or partially prepared and had to be discarded.
5. Review the Results: The 86 calculator automatically updates the “Total Financial Loss,” “Lost Revenue,” and “Wasted Prep Cost.” Use these numbers to understand the severity of the stockout.
6. Analyze the Chart and Table: The dynamic chart and sensitivity table help you visualize the loss and understand how it scales with missed sales, which is key for effective menu engineering.

Key Factors That Affect 86 Calculator Results

The output of the 86 calculator is influenced by several operational factors. Improving these areas can minimize your losses.

1. Demand Forecasting Accuracy

Poorly predicting how much of an item you’ll sell is the primary cause of both stockouts and waste. Analyze historical sales data (day of the week, seasonality, special events) to make better predictions.

2. Supplier Reliability

If your suppliers deliver late or provide inconsistent quality, your ability to serve customers is compromised. A reliable supplier is a key partner in preventing 86’d items.

3. Inventory Management

Using a “first-in, first-out” (FIFO) system and conducting regular inventory counts are fundamental. Without knowing what you have, you can’t order effectively. This is the core of good kitchen waste management.

4. Profit Margin of the Item

As the 86 calculator shows, running out of a high-profit item is far more damaging than running out of a low-margin one. Prioritize inventory management for your most profitable dishes.

5. Prep and Batching Procedures

Prepping too much of an item in advance increases the “Wasted Prep Cost” if the core ingredient is 86’d. Implement just-in-time prep for components where possible.

6. Staff Communication and Training

When an item is running low, the kitchen must communicate this to the front-of-house immediately. Well-trained staff can guide customers to other excellent menu choices, mitigating disappointment and helping to sell through items you want to move. Proper staff training is an investment.

Frequently Asked Questions (FAQ)

1. What is the origin of the term “86”?

While several theories exist, one of the most popular traces “86” back to Chumley’s, a former speakeasy in New York City at 86 Bedford Street. During Prohibition, police would call ahead, and the bartender would “86” the customers out the back door to avoid a raid. Over time, it evolved to mean getting rid of something, including a menu item.

2. How can I prevent having to 86 items so often?

Start by tracking your sales data meticulously. Use this data to improve your purchasing forecasts. Implement a strict inventory system (like FIFO) and conduct regular counts. Build strong relationships with reliable suppliers. Finally, use an 86 calculator regularly to remind yourself and your team of the financial stakes.

3. Is it always bad to 86 an item?

Not necessarily. 86-ing a “special” that sells out can create a perception of high demand and exclusivity. It’s much worse to run out of a standard, core menu item that customers expect to be available every day. The key is whether the stockout is strategic or a result of poor planning.

4. How is the 86 calculator different from a standard food cost calculator?

A food cost calculator determines the cost percentage of a menu item to help with pricing. An 86 calculator, on the other hand, measures the financial loss after the fact, when you fail to sell that item due to a stockout. It calculates opportunity cost and waste, not pricing strategy.

5. What should I input for “Potential Servings Missed” if I’m unsure?

Be realistic. Consider the time remaining in the service, the historical sales velocity of the item for that day, and any walk-in traffic or reservations. It’s better to make a conservative estimate than to inflate the number. The sensitivity table on our 86 calculator can help you see how the loss changes with different estimates.

6. Does this calculator account for the damage to my restaurant’s reputation?

No, the 86 calculator only quantifies the direct financial loss. It does not measure the intangible costs, such as customer disappointment, negative online reviews, or the perception of being poorly managed, which can have a much larger long-term financial impact.

7. Can I use this for bar inventory?

Absolutely. The logic is the same. Simply substitute “Cost per Dish” with “Cost per Drink,” and so on. Running out of a key spirit for your most popular cocktail has the same financial implications, and this 86 calculator will work perfectly.

8. How often should I use the 86 calculator?

Use it every single time you have to 86 a significant item. Tracking these losses over time will reveal patterns. You might discover that you always run out of a particular item on the third Saturday of the month, which points to a specific issue in your ordering cycle. Data is power.