Measuring the Labor Efficiency Ratio (LER) for Sales and Marketing: A Practical Guide for Growth-Focused Teams

Sales and marketing teams are often evaluated on activity and output, such as leads generated, deals closed, and revenue booked, but those metrics alone don’t tell the full story. The more important question is this: how efficiently are your sales and marketing teams converting labor into margin?

In a recent episode of Profitability Playbook: The Simple Numbers Podcast, hosts Brandon Gray and Mike Maxson unpack a powerful, underutilized use of the Labor Efficiency Ratio (LER): measuring sales and marketing labor efficiency. This episode, the first in a two-part series focused on LER, dives into how to calculate it, why it matters, and how leaders can use it to make better decisions about hiring, spending, and strategy.

Why Sales and Marketing LER Matters

Most business owners are familiar with direct labor efficiency, especially in operations or production. What’s often overlooked is that sales and marketing labor has a direct and measurable impact on margin production, even though it’s less tangible.

Sales and marketing LER answers a critical question: How much gross margin are we generating for every dollar we spend on sales or marketing labor? When tracked correctly, LER becomes a decision-making tool rather than just a reporting metric.

Key Definitions

Before calculating LER, it’s essential to understand these definitions:

Labor Efficiency Ratio (LER)

LER measures the return on labor investment by dividing a margin figure by labor spend for a specific function. At its simplest:

LER = Margin ÷ Labor Spend

Gross Margin (Simple Numbers Definition)

In this framework, gross margin is defined as:

Revenue – Non-labor direct costs

Labor is intentionally excluded so you can clearly evaluate how effectively labor is generating margin.

Non-Labor Marketing Spend

These are marketing costs you do not directly control as labor, such as:

• Advertising spend

• Marketing or PR agencies

• Conferences and sponsorships

• Marketing software or platforms

These costs must be separated from labor to avoid muddying the analysis.

“Gross, Gross Margin”

The episode introduces a helpful concept borrowed from e-commerce:

Gross, Gross Margin (or Gross Margin After Marketing (GMAM))

= Gross Margin – Non-Labor Marketing Spend

This number represents the margin available before accounting for sales or marketing labor.

How to Calculate Marketing LER

Once you’ve isolated the right numbers, the formula becomes straightforward:

Marketing LER = Gross, Gross Margin ÷ Marketing Labor Spend

What counts as marketing labor:

• Internal marketing team members (CMO, marketing managers, lead specialists)

• Contractors who function like employees (for example, long-term 1099s you directly manage)

If you can adjust or remove the cost, it belongs in labor.

A Simple Example

• Revenue: $1,000,000

• Non-labor direct costs: $400,000

• Non-labor marketing spend: $100,000

Gross Margin:

$1,000,000 – $400,000 = $600,000

Gross, Gross Margin:

$600,000 – $100,000 = $500,000

If marketing labor spend is $250,000: Marketing LER = $500,000 ÷ $250,000 = 2.0

That means every dollar spent on marketing labor generates $2 in margin.

Sales LER: Where Marketing Meets Revenue

Sales LER builds on the same logic but uses margin after marketing as its starting point.

Sales LER = Gross Margin After Marketing ÷ Sales Labor Spend

This helps answer an important question: Are sales teams efficiently converting marketing’s output into margin?

LER must always be based on margin, not revenue. A $1M deal at a 10% margin is not the same as a $1M deal at a 70% margin, and LER makes that difference visible.

When LER Goes Up (Or Down)

LER is most powerful when viewed as a trend, not a single data point.

If LER is Increasing:

• Labor is becoming more effective

• Campaigns or sales strategies may be improving

• Margin is growing faster than labor costs

If LER is Declining:

Something needs to change. You have only two real levers:

• Increase margin output, or

• Reduce labor spend

If neither is possible, the labor likely doesn’t belong in that function.

Sales vs. Marketing: The Blame Game and the Data

Another common tension is blame shifting between marketing and sales. Sales may say, “The leads aren’t good, while marketing says, “Sales isn’t closing.”

LER doesn’t settle the argument by itself, but it forces better questions, such as:

• Did the lead quality change?

• Did the market shift?

• Did staffing or strategy change?

• Are we measuring the same definition of a “lead”?

Used together, sales and marketing LER create a shared, data-driven language.

Best Practices for Using LER

Track LER on a rolling 12-month basis to account for seasonality and compare trends over 12–24 months, not just quarter to quarter. Allocate labor carefully for roles that wear multiple hats. Use LER before hiring, not after, to model impact. Pair LER with contribution margin to balance efficiency and dollars.

Final Thoughts

Sales and marketing labor efficiency can offer a clearer look at the broader picture. When you understand how labor converts to margin, you can hire with confidence, spend intentionally, diagnose performance issues faster, and align sales and marketing around the same goals.

LER turns gut decisions into financial strategy, which is where sustainable growth starts. If you’d like help measuring your sales and marketing labor efficiency, contact us to get started.