Acquisition Cost per Guest (ACG)

Getting a new customer through your door or onto your ordering platform takes effort and money. Acquisition Cost per Guest tells you exactly how much that effort is costing you, per person.

For restaurant owners investing in ads, influencer collaborations, discount offers, or referral programs, this is one of the most important numbers to know.

What is Acquisition Cost per Guest (ACG)?

Acquisition Cost per Guest is the total marketing and promotional spend required to bring one new customer to your restaurant for the first time.

The formula is:

ACG = Total New Customer Acquisition Spend / Number of New Guests Acquired

Acquisition spend includes everything you put in to attract first-time customers: paid ads on Meta or Google, influencer fees, first-visit discount vouchers, referral credits given to existing customers, and any promotional costs tied specifically to new guest acquisition.

A Real Example

Say you spent ₹50,000 in a month across Instagram ads, a Zomato promotional listing, and a “first order free delivery” offer. During that same month, 200 new customers placed their first order with you.

Your ACG = ₹50,000 / 200 = ₹250 per new guest

Now the important question is: is ₹250 a good number for your restaurant? That depends entirely on how much that guest is worth to you over time, which is where Customer Lifetime Value comes in.

Why ACG Matters for Restaurant Owners

Most restaurant owners track how many new customers they are getting. Far fewer track how much each new customer is actually costing them.

If your ACG is ₹250 but a typical new guest only ever visits once and spends ₹300, you are barely breaking even on the cost of acquiring them. However, if that same guest visits six times over a year and spends ₹300 each visit, your ₹250 acquisition cost suddenly looks like a very smart investment.

ACG helps you make smarter decisions about:

• Which marketing channels to invest in by comparing ACG across Meta ads, Swiggy listings, influencer campaigns, and referral programs
• How aggressive to be with discounts because a deep first-visit discount lowers the barrier to entry but raises your ACG
• Whether your loyalty program is working, since a good loyalty program should bring ACG down over time through referrals and word of mouth
• How to set marketing budgets based on real unit economics rather than gut feel

ACG vs. AOV vs. CLV: How They Work Together

These three metrics are most powerful when read together:

• AOV (Average Order Value) tells you how much a customer spends per order
• ACG tells you how much it costs to get that customer in the first place
• CLV (Customer Lifetime Value) tells you the total revenue that a customer will generate over their relationship with your restaurant

A healthy restaurant business has a CLV that is significantly higher than its ACG. If the two numbers are close to each other, your growth is expensive and potentially unsustainable.

How to Bring Your ACG Down

• Invest in referral programs because getting existing happy customers to bring in new ones is almost always cheaper than paid ads
• Build a strong Google Business Profile since organic discovery through search and maps costs nothing per guest
• Focus on retention because a customer who keeps coming back reduces the pressure on constantly acquiring new ones
• Track ACG by channel and cut spend on channels where the cost per new guest is not justified by the revenue they generate
• Use a Restaurant CRM to identify which acquisition channels bring in guests who actually return, not just one-time visitors attracted by a discount

Quick Recap

• ACG tells you the real cost of growing your customer base
• It is most useful when compared against CLV to assess whether acquisition is profitable
• Track it by channel to identify where your marketing budget is working hardest
• Combine it with a retention strategy so that the cost of acquiring each guest pays off over multiple visits