Running a restaurant can be a challenging task with lots more to account for than what meets the eye. Everything from staff scheduling and financial analysis to inventory management and mitigating costs are vital components of a successful restaurant.
This is why restaurant forecasting is so important. It helps restaurant owners make informed decisions regarding purchasing, staffing, and profitability as well as helps them prepare for upcoming events or trends. Forecasting restaurant sales leads to increased revenue and can significantly lower operating costs, all contributing to the restaurant’s overall profitability.
So, what exactly is restaurant forecasting? It is the process of using data to predict how much the business can expect in sales in a given period to make sound decisions about various operational situations. Restaurant forecasting impacts a few primary functions: inventory management, informed planning, profitability prediction, and setting goals.
Having an accurate amount of inventory at a restaurant can be challenging, as it is very easy to overestimate or underestimate the amount of food and materials needed. Forecasting will help the business optimize the amount of inventory needed and give insights into the most popular or least popular items on the menu. This reduces the chance of running out of an ingredient while simultaneously reducing waste.
Restaurant forecasting also allows restaurant owners to plan accordingly for peak and non-peak seasons. It also helps business owners make more informed decisions regarding marketing, advertising, staffing, and hiring based on data. For example, if there is an increase in sales during a certain time, the business owner could better prepare for the next spike in sales by hiring extra staff. During the slower periods, the business owner could allocate more funds to marketing and advertising.
Perhaps the most important aspect of restaurant operations is profitability. Bringing in enough income is a surefire way to ensure the restaurant runs smoothly and has the potential to grow. If the owner forecasts restaurant sales regularly, they can estimate an approximate amount of profit during a given period of time and make decisions about menu pricing accordingly.
To properly forecast restaurant sales means to properly prepare for the future. Business owners can set goals according to the data collected, painting a clear picture of what is to come. If restaurant owners better understand their business’s performance, they can implement strategies that ultimately lead to success.
For existing restaurants, the best way to forecast restaurant sales is by analyzing historical data, identifying trends, assessing recent trends, and accounting for external factors. To forecast sales for a new restaurant, select a time period (day, week, month, or year), determine the working hours and days within the period, calculate the average number of customers served during that period and the average spend of each customer, then calculate the sales forecast:
Number of days open x Average number of customers served in chosen time period x Average spend/customer
Technology is now an important part of restaurant forecasting, particularly the POS system. The POS regularly collects sales data, but that information can be challenging for the average employee to understand. Integrating POS systems with an artificially intelligent operating system such as ClearCOGS will help restaurants better understand their analytics. ClearCOGS helps restaurant owners make informed decisions to increase profits, reduce food waste and lower their carbon footprint. These AI-driven solutions are among the best methods for restaurant forecasting.
The two components of restaurant forecasting
Restaurant forecasting happens at two levels. Sales forecasting predicts how much business is coming: revenue, covers, or transactions for a day, a daypart, or a week. Demand forecasting goes a level deeper and predicts what guests will actually order, item by item, so the kitchen knows how much to prep and how much to buy.
The two work together: the sales forecast sets the size of the day, and the item-level demand forecast turns it into quantities the team can act on. We break this split down in more detail in What are the two components of restaurant forecasting?
What a good forecast should drive
A forecast only pays for itself when it changes what the team does next. In practice, that means three daily outputs:
- Prep: how much of each item to make today, so the line is ready for the rush without over-prepping food that ends up in the trash.
- Ordering: purchase quantities that keep up with demand without tying up cash in inventory that spoils. Forecasting is what makes par levels that keep up with demand possible.
- Labor: schedules matched to projected volume, so you are not overstaffed on a slow Tuesday or short-handed on game day.
From spreadsheets to restaurant forecasting software
Most operators start forecasting in a spreadsheet, and a spreadsheet is a fine way to learn what your numbers are telling you. But it has a ceiling: it depends on one person keeping it updated, it struggles with item-level detail across a full menu, and it cannot easily account for weather, seasonality, holidays, or local events on its own.
That is the job of dedicated restaurant forecasting software: it learns from your POS history and outside signals, then turns the forecast into the prep counts, order quantities, and labor plans your team uses every day. If you want to see how this applies to a specific area, our menu forecasting page walks through the item-level side, and the buyer’s guide above compares the main tools on the market, including ClearCOGS.
Further reading
- Best Restaurant Demand Forecasting Software (2026 Buyer’s Guide)
- ClearCOGS vs Restaurant365, Lineup.ai, 5-Out, and Crunchtime: A Forecasting Comparison
- Why Par Levels Fail Your Restaurant on the Days That Matter Most
- Restaurant Scheduling AI Is Improving. The Complexity Trap for Franchisees Has Not Gone Away.
- Why Data Chaos Blocks Restaurant Operators From Getting Smarter
- You Know You Have a Waste Problem. You Just Can’t See It Yet.
