Mastering the Margins—Listen to the Story Your Number are Telling

How to dig into your P&L and other financial data to find ways to widen your profit margin.
April 2, 2026
7 min read

When Ben Burns first took over Downing Street Garage in Denver, Colorado, in 2013, there was little time to pore over any type of financial data. In fact, with less than a handful of employees and three toddlers under four years old at home, there was even less time to think about a Plan B if the business did not succeed. He and his wife, Kristine, were all in.

“There wasn’t really a ‘what if this doesn’t work’,” Burns recalls. “It was more like, ‘OK, what do we do to make this work’?”

He admits he was coming into the business as the third generation to run an auto repair shop and a technician, but really no experience as an owner himself.

“I had never service written at all,” Burns explains. “So that was just a role I had to step into and learn. I was a tech. So, it gave me an opportunity to learn really quickly all the facets of the business.”

Like many who transition from the labor pool to the leadership side of auto repair, Burns wishes he had taken the time earlier to dive into his financial health.

“The big thing is what gets measured gets managed,” he points out. “So, that’s what we can use our P&Ls for. People need to look at it and say, ‘OK, here’s that line. I need to stay critical. I need to stay curious’.”

 With five stores under his belt and two more coming aboard, there are certain indicators and benchmarks that help to determine financial health versus hardship. The answers lie in your ability to translate the line items in your profit and loss statements as well as your ability to track your Key Performance Indicators.

After all, says David Rogers, CEO of Auto Profit Masters, although P&L is a great tool to gauge where you’ve been, it doesn’t account for where you should be headed.

“(P&L is) more like a report card and something for long-term planning,” he notes. “But you can’t run a successful shop by looking at financial data and managing backwards. The only way to win is set your goals, engineer your path, and make adjustments every single day.”

So, how do you know what to focus on to make strides between your profit and your expenses? Begin by reading the story your numbers are telling—not just in your P&L, but all of your financial data. 

Use Accurate Data

In order to rely on your numbers and use the data to chart a path forward, the information first has to be accurate, Burns and Rogers agree.

“That’s the really important part is making sure that 100% the data is correct so (shop owners) can make decisions based off of it,” Burns explains. “Because whether it’s QuickBooks or they’re using their shop software, they all will give you the same thing.
But if somebody didn’t take the time to plug into their labor software what their actual cost of technician is, they’re not going to have data spit out that’s accurate.”

Rogers adds the information is only as good as the system you’re relying on to produce it. 
“It’s all about the information, how it’s captured, how it’s categorized, and how that information is presented,” he points out. “Is it presented in a way that I can go in and glance at it, and in a couple minutes know exactly what I need to do to fix the problem?”

And sometimes, he adds, you can’t rely on tools to produce reports. You simply have to do the legwork, particularly when it comes to setting your labor rate.

“You can’t set a labor rate based on a report. You need to survey your market. You need to see what the competition’s charging, and you set your rate as part of your brand strategy,” he recommends.

He continues: You can’t set a labor rate based on fear, emotion, or even a spreadsheet. Whether it’s $129 or $250, it has to come down to solid facts dictated by the market you’re in (see sidebar: Higher Labor Rates Don’t Guarantee Higher Margins).

Review Your Finances Regularly

All the data in the world is useless unless you take the time to review it, Rogers adds. And it may be too late to change course by the time the P&L comes out.

“If you try to manage by the P&L, you won’t see (the numbers) until the month is already over,” he points out. “By then, the murder has already happened, and the body’s been disposed of. I can’t go back and fix what happened in my shop a month or a quarter ago.”

He adds: “If you’re still going in and using a program or tools that are like a word processor that will make an invoice, you’re going to be forced to manage backwards, and you’re going to be one of those people that’s looking at the P&L trying to figure out where you’re going to squeeze the money from. You can’t squeeze the employee or squeeze the customer anymore; the squeezing doesn’t work,” Rogers asserts. “You strategize. You set up things where everybody can win.”

Instead, Rogers says, you must review numbers daily.

“I pay the most attention … to the things that I can control daily,” he says. “We control how many hours we’re billing by how thoroughly we inspect, write up, and advise. We control the parts margin through our pricing strategy. We control car count through marketing spend.”

Meanwhile, Burns says he gathers his entire management team monthly to review financial statements, including P&L, to determine the why behind every line.

“If we start to see things trending in a certain direction, we have to address them. Whether it’s small tool purchases, uniform costs, cell phone bills, if we start to see a trend of those costs increasing, we need to know why,” he notes. “It’s about having the ability to dissect it to the point of finding what your problems are so that you can affect change.”

Burns adds it’s important to remember that there are line items, such as uniforms and waste disposal, which can be renegotiated or lowered simply by asking or consulting an alternate vendor (see sidebar: Some Numbers are Negotiable). 

Know What’s Next

If you do recognize that one of the line items of your P&L is off, Burns says, a good owner will work to determine the next five steps it takes to change it.

“For a lot of people, the P&L is a two-dimensional report and it’s just a bunch of words and numbers in a list and when they see that their parts profit by X amount and that’s not OK, it stops there,” he explains. “But what are they going to do from there to affect the change? Are you just going into your shop and yelling at your employees to charge more? Because that’s not educating, that’s not teaching, that’s not solving the problem at the core. That’s treating the symptom.”

Burns adds teaching your managers to become analytical thinkers and encouraging them to take action before numbers get out of sync is a win-win. “That’s teaching them how to run the business instead of just doing what they’re told,” he explains. “And it builds curiosity to be analytical thinkers. And that’s the really important part.”

Know Your Net Profit

In short, profit is why you’re there, Burns says. Therefore, knowing your net profit is imperative in determining the health of your business.

“That’s your paycheck, that’s your cushion for whether you can send everybody to training, whether you can send your kids to private school. That’s your principal for all your loan payments,” he points out. “It doesn’t matter how good your P&L is if the bottom number isn’t where it needs to be. At the end of the day, none of the other numbers matter if your net’s not where it needs to be.”

Learn Your Narrative

Ultimately, Burns says it’s important to realize that your numbers tell a story and it’s important to not only listen to them but realize that you can control the narrative by paying attention.

“The big thing is just knowing (the P&L) tells a story. Using it as a road map to run your business is so important,” he says. “It’s something that is fluid, it’s something that’s constantly changing and using it as a tool is really, really important.”

About the Author

Christine Schaffran

Editor-in-Chief

Christine Schaffran is the Editor-in-Chief for Ratchet+Wrench magazine at Endeavor B2B. She is an award-winning journalist, having covered both commercial and industry magazines and newspapers during her career. She previously served as Editor-in-Chief for another publisher for 17 years prior to joining Endeavor. When she's not spending time with her husband and son, you'll find her in the kitchen experimenting with new recipes and delicious dishes to try. 

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