Marketing Efficiency Ratio: How To Calculate + Improve MER

Marketing efficiency ratio (MER) is a blended metric that combines paid, organic, brand, and retention activity to help you understand how your marketing efforts are paying off. 

Gartner reported that marketing budgets were 7.8% of company revenue in 2026, nearly flat from 7.7% in 2025. Marketers use MER to forecast the revenue a planned marketing budget is expected to generate and guide spending.

This guide covers how to compute your own marketing efficiency ratio and how to improve it.

What is marketing efficiency ratio (MER)?

Marketing efficiency ratio (MER) is a blended marketing efficiency metric that compares total revenue with total marketing spend. Also called blended ROAS, it shows you how much total revenue your business generates for every dollar spent on marketing. 

Businesses use a marketing efficiency ratio (MER) to understand how much revenue they’re earning from their marketing strategy. It gives them a single high-level view of how efficiently their total marketing investment is turning into sales.

MER also tracks whether your brand’s overall marketing efficiency is increasing or decreasing over time. It can help your team to forecast revenue targets. For example, if a business plans to spend a certain amount on marketing, MER can show how much revenue that budget needs to produce to meet operational efficiency goals.

A lower MER shows that marketing spend is growing faster than revenue. A higher MER means revenue is increasing more efficiently relative to marketing spend.

How to calculate marketing efficiency ratio

MER = total revenue ÷ total marketing spend 

For example, $200,000 in revenue divided by $50,000 in marketing spend equals a MER of 4, meaning the business earned $4 for every $1 spent on marketing.

Use the same revenue and spend definitions each time so you can compare MER across months, quarters, or years. According to Shopify’s Q4 2025 Survey of Store Owners, 77% of merchants track sales or total revenue, making it the most commonly tracked metric.

To calculate marketing efficiency ratio, follow these steps:

1. Select a time period
2. Calculate your revenue
3. Determine marketing and ad spend
4. Apply the marketing efficiency ratio formula

1. Select a time period

Choose the date range you want to measure, such as a month, quarter, or year. Use the same window for revenue and marketing spend. 

In Shopify, Shop Campaigns can help track multichannel marketing activity in one place, including clicks from links, QR codes, UTMs, and campaign performance metrics.

2. Calculate your revenue 

Pull revenue for the same date range you selected in step one. Use a reliable source of truth, such as Shopify Analytics or your CRM. 

Choose one revenue definition, such as total sales or net sales, and use it every time you calculate MER to make sure your results are consistent.

3. Determine marketing and ad spend 

Add up marketing costs for the same date range. Include paid ads, influencer fees, creative production, marketing tools, and agency or contractor costs. Use the same spend categories each time so your MER stays comparable.

4. Apply the marketing efficiency ratio formula 

Take your revenue and marketing spend numbers from the same date range.

Use the formula:

Total revenue ÷ total marketing spend = marketing efficiency ratio

Using the Q3 example, $200,000 ÷ $50,000 = 4. This means the business earned $4 for every $1 spent on marketing.

Some teams also discuss marketing spend as a percentage of revenue. Using the same numbers, $50,000 ÷ $200,000 = 25%, meaning marketing spend represented 25% of revenue.

MER vs. ROAS: Key differences

MER and ROAS (return on ad spend) measure marketing performance at different levels. ROAS helps evaluate specific ads or campaigns. MER shows whether total marketing spend is producing enough revenue across the business.

Channel-level ROAS reporting can attribute revenue differently across platforms. Google Ads lets advertisers use and compare attribution models, whereas Meta uses attribution settings that determine when conversions are credited to ads. MER gives store owners a business-level view by comparing total revenue against total marketing spend.

This is why MER and ROAS work better together:

• ROAS helps marketers make campaign-level decisions. 
• MER helps you see whether marketing is becoming more or less efficient overall.

Dreamdata reported that, among the three major ad networks it analyzed in March 2025, LinkedIn Ads generated the highest return on advertising spending at 113%. This was followed by Google Search at 78% and Meta at 29%. 

Channel-level benchmarks can help guide ad analysis, but they still work best when looked at together with business metrics. In Shopify’s fourth quarter 2025 survey of store owners,* 77% of merchants tracked sales or total revenue. Only less than half tracked profit margin, traffic, average order value, or conversion rate. Considering these two pieces hand in hand gives you a better view of your brand’s big picture.

What is a good marketing efficiency ratio?

A good MER depends on how your business makes money. Eightx’s 2026 benchmark study places a healthy blended MER target around 3.0 times to 5.0 times. Use that as a reference point, then adjust based on your margins, growth stage, industry, and customer acquisition costs.

Budget expectations also vary by category. In the January 2026 CMO Survey, US CMOs said retail and wholesale companies allocated 11.78% of their overall budgets to marketing expenses on average. Consumer packaged goods companies allocated 14.8%, and consumer services companies allocated 19.11%.

What a business defines as spend also changes their MER. Depending on your brand, you might include only direct media costs, such as ad spend and influencer fees. Or you might consider marketing tools, contractors, production, and team salaries. 

High-revenue businesses often track MER in tandem with other performance metrics. In Shopify’s fourth quarter 2025 survey of store owners, brands with $1 million or more in revenue tracked revenue at 85%, profit margin at 57%, and ROAS at 44%.

When to use MER and when not to

Many businesses can measure advertising ROI, but not always with the same level of consistency. In a March 2025 Intuit survey of US-based small and medium-sized businesses, 25% of respondents said they could always measure advertising ROI. Another 47% said they could usually measure it, and 23% said they could sometimes measure it.

Marketing efficiency ratio is useful for measuring total marketing efficiency over a set period. It can support budget forecasting, revenue planning, executive reporting, and profitability targets.

Use more granular marketing metrics to evaluate a specific channel or campaign.

MER can change based on several inputs:

To help measure and track MER, Shopify has a few options:

• Group marketing activity. Use Shop Campaigns to organize marketing efforts across channels.
• Track campaign traffic. Create QR codes and UTM parameters for campaign tracking.
• Review attributed performance. Use Shopify’s Marketing reports to see sales, sessions, orders, and channel performance.
• Add deeper reporting. Analyze attribution and ROAS with Shopify App Store apps like ATB: Attribution Reports and TrueProfit.

How to improve your marketing efficiency ratio

Improve marketing ROI by considering these key factors:

• Refine targeting and segmentation strategies
• Optimize creative messaging
• Prioritize high-value channels
• Focus on AOV
• Improve pipeline efficiency
• Increase repeat purchases

Refine targeting and segmentation strategies

Use Shopify customer segments to group customers by purchase behavior, location, predicted spend, and other available data. 

Then, use Shopify Messaging to send email and SMS campaigns to the segments most likely to respond. Improved targeting keeps more budget out of low-intent audiences and moves spend toward shoppers more likely to buy.

Eligible Shopify Plus merchants can also use Shopify Audiences to create audience lists for ad platforms such as Meta, Google, and TikTok. Furniture brand Nathan James used Shopify Audiences to reach higher-intent buyers, which saw a 55% increase in marketing efficiency ratio and increased ROAS 5.6 times.

“Shopify has enabled us to leverage insights from millions of direct connections that merchants have with their customers, so we can reach high-intent buyers,” says Nathan James CRO Josh Bultz. “The reporting Shopify offers is a game-changer for DTC merchants. We are now able to invest in the right areas where there is measurable ROI.”

Optimize creative messaging 

Experiment with different advertising and marketing assets to increase your ad conversion rate. 

Consider using A/B testing tools to compare images, taglines, and CTAs in paid advertisements. These programs can monitor performance, identify messages that resonate with your audience, and automatically display the most effective advertisements. 

Prioritize high-value channels 

Review ROAS and marketing efficiency ratio for each of your active advertising channels to identify which ones consistently yield the best results. 

First Page Sage reported that the US ecommerce industry’s average cost per lead between January 2022 and June 2025 was $98 for paid channels and $83 for organic channels. Lower lead cost can improve efficiency, but it only improves your MER if those leads convert into revenue.

Paid channels can still be worth the higher cost when they bring in qualified shoppers at scale. Shopify’s fourth quarter 2025 survey of store owners* found that 31% of high-revenue merchants (earning $1 million or more) cite paid advertising as their most effective growth strategy.

Compare MER and ROAS by change, then move budget toward the channels that generate the higher returns. 

Focus on AOV 

A higher average order value (AOV) can improve MER by increasing revenue per order. Dynamic Yield by Mastercard reports global AOV of $189, with regional averages of $213 in EMEA, $166 in the Americas, and $123 in APAC.

Use benchmarks like these to compare your store against similar markets, then look for ways to increase order value without adding friction. Bundles, product recommendations, and upsells can encourage your customers to add more to each order.

Improve pipeline efficiency 

Review where shoppers leave the purchase path from the landing page to checkout. Improving these steps can generate more revenue from the same marketing spend.

The Baymard Institute reports that the average large ecommerce site can achieve a 35.26% increase in conversion rate by addressing solvable checkout usability issues.

On Shopify, you can use Shopify Checkout and Shop Pay to reduce friction at the final stage of the funnel. BODi reported a 10 percentage point lift in checkout conversion after launching on Shopify, with further gains after enabling Shop Pay.

Increase repeat purchases

Increasing your customer lifetime value (CLTV) improves MER because repeat orders add revenue after the initial acquisition cost is already paid. 

Fine-tune your tactics depending on the type of product your business sells:

• For replenishable products, send reminders before customers run out. 
• For products that pair with accessories or refills, send post-purchase recommendations. 
• For longer purchase cycles, use win-back campaigns when order activity slows.

Automate the follow-up process with tools like Shopify Flow. With Flow, stores can trigger messages based on order history, purchase timing, or customer activity to encourage repeat purchases.

*Based on a 2025 survey of 500 Shopify merchants conducted in English across Australia, Canada, the United Kingdom, Ireland, New Zealand, and the United States. Respondents were established merchants with two or more years on the platform. Results reflect the experiences of this specific sample and may not be representative of all merchants.