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How to calculate revenue: get a quick monthly and annual estimate

Revenue = average ticket size × customers per day × working days per month. Multiply by 12 to get annual revenue.

Enter those three numbers for an instant monthly and annual revenue estimate. The sections below explain how to find each number and what to adjust once you have your result.

Estimate your revenue target

Enter your numbers for an instant monthly and annual revenue estimate

Typically 22–26 days

Estimated revenue

Daily revenue

Monthly revenue

Annual revenue

Tips to increase revenue

  • - Use an online booking system to reduce idle time
  • - Promote add-on services to raise your average ticket size
  • - Start a membership program to bring customers back

The formula behind service business revenue

For appointment-based businesses, the revenue math is straightforward:

Total revenue = average ticket size (AOV) × customers per day × working days per month

1. Average ticket size (AOV)

This is how much each customer spends on average.

  • How to improve: Offer add-ons such as deep conditioning or exfoliation, bundle services into packages, or use your expertise to raise your base price.

2. Customers per day (daily capacity)

This is how many customers you can serve in a day.

  • How to improve: Cut non-core admin time. If you spend 2 hours a day replying to messages, that time could go to one more customer.

3. Working days per month

This comes down to your energy and quality of life.

  • How to improve: Use automation to reduce fatigue so you can schedule appointments more efficiently without working harder.

How to read your results

A. Estimated monthly revenue

This reflects where your business stands today. If the number is lower than you expected, ask whether you need a higher average ticket size or more customers.

B. Capacity utilization

If your goal is 5 customers a day but you’re only booking 3, your capacity utilization is 60%.

C. Hidden losses

If your calendar isn’t full, every empty slot costs you rent and time.

Want to hit a higher revenue target?

If your estimate falls short of your goal, there are usually two ways to close the gap:

Option 1: refine your pricing and services

Make sure every hour you work earns a fair return.

Option 2: automate booking to free up capacity

Going back and forth on LINE to find a time eats into your revenue potential. Dolyu helps you:

  • Accept bookings 24/7: Capture late-night, spur-of-the-moment bookings.
  • Send automatic appointment reminders: Reduce no-shows and keep your calendar steadier.
  • Keep customers coming back: Rebooking reminders go out automatically after the number of days you set.

FAQ

Common questions about calculating revenue

Yes — it’s completely free, and you don’t need to sign up to use it.

Enter your average ticket, daily customer count, and working days per month. The calculator instantly estimates your monthly and annual revenue — no financial background needed.

The results are based on the numbers you enter. Actual revenue can vary with your service mix and seasonal demand. For a closer estimate, adjust your inputs using your actual numbers from the last 3 months.

The three biggest levers are average ticket size (AOV), customers per day (daily capacity), and working days per month. The estimate changes in proportion to each of them.

Dolyu offers 24-hour online booking and automatic appointment reminders.

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