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How to measure and understand your business's profitability


Posted by Monica Gameng

For developing construction businesses, knowing your financial numbers is crucial to your company’s growth because these figures will indicate if you are moving towards success or heading towards trouble. Experts such as accountants or financial analysts will help you when it comes to tracking your profitability, but you can also takes steps to do it on your own. 

If you decide to keep track of your profitability on your own, here are a few things you need to know.

The numbers you need

You need to familiarise yourself with the most basic numbers such as income – money that you receive in exchange of your services or products – and costs – money you use to produce goods or services. All expenses are accounted to your cost, which includes office space rent, employees’ salaries, utility bills – electricity, phone bills, supplies etc – as well as equipment maintenance and repairs.

Cost also has two types: fixed costs – which include all overhead expenses such as rent and utilities – and direct costs – all expenses related to what you are selling or your services.

There are a number of inexpensive accounting programs or software you can utilise to help you keep track of your numbers. A simple spreadsheet on Google Sheets or Excel will also do. Once you find a tool that works for your business, all you have to do is add the figures. Make sure that you input all the money that comes in and goes out on a weekly or daily basis to keep your record as updated as possible.

Determining your profitability

Firstly, the computation for your profitability involves a few things, your sale price, direct cost and fixed cost. For equipment hire companies, your sale price is the amount you set for hiring your machinery, and direct cost could include maintenance, repairs and marketing expenses.

Computing for your profitability is manageable. Here's a quick recap of the maths required - with help from our friends at the Department of State Development who held a great workshop on Business Positioning which included a whole session on financial analysis. 


Net Profit

Sales Revenue = income from services e.g $324, 560

Overheads = indirect costs (phones, office supplies, salaries, leases, insurance) e.g $165, 790

Cost of sales = direct cost of products/services your business sells e.g $132, 456

$ Net Profit = sales revenue - (overheads + cost of sales) e.g $324, 560 - ($165,790 + $132, 456) = $26, 314

% Net Profit = (net profit ÷ sales revenue) x 100 e.g ($26, 314 / $324, 560) x 100 = 8.11%

Gross Profit

Sales revenue = income from services e.g $324, 560

Cost of salesdirect cost of products/services your business sells e.g $132, 456


$ Gross profit = sales revenue - cost of sales e.g $324, 560 -  $132, 456 = $192, 104

% Gross profit = ($ Gross profit ÷ Sales revenue) x 100 e.g ($192, 104 / $324, 560) x 100 = 59.19%

Gross Profit per unit

$ Gross profit = sales revenue - cost of sales e.g $324, 560 -  $132, 456 = $192, 104

Number of units sold = e.g number of machines used 24367

$ Gross profit per unit = $ Gross profit ÷ Number of units sold e.g $192,104 ÷ 24367 = $7.88

Break-Even Point

$ profit per unit = $ Gross profit ÷ Number of units sold e.g $192,104 ÷ 24367 = $7.88

Overheads = indirect costs (phones, office supplies, salaries, leases, insurance) e.g $165, 790

Break even point (# units) = overheads ÷ $ gross profit per unit e.g $165, 790 / $7.88 = 21, 029


Return on equity

$ Net Profit = sales revenue - (overheads + cost of sales) e.g $324, 560 - ($165,790 + $132, 456) = $26, 314

Total Assets = $ value of assets (e.g machines) owned e.g $435, 900

Total liabilities = $ value of financial obligations owed e.g $124, 500

$ Equity (amount of business you own) = total assets - total liabilities e.g $435,900 - 124,500 = $311, 400

% Return on Equity (return on your investment, not other equity holders) = (net profit ÷ $ equity) x 100 e.g ($26,314 ÷ $311,400) x 100 = 8.45%

% Gross Profit =  $ Gross profit ÷ sales

Now that you know the basics of profitability and how to keep track of it, it’s time to start winning more hire work for your construction company. We have created a downloadable infograph which highlights 4 tips which will help you increase your chances of winning hire work.

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Author's note: Information on the post ws sourced from Startup Smart 

Monica Gameng

Monica Gameng

As PlantMiner's Marketing Assistant since 2015, Monica is responsible for researching and sharing new and progressing projects within the construction and mining sectors in Australia. It's no surprise that Monica has her finger on the pulse of Australian major projects given she has produced more than 1000 posts. She truly is an industry expert. Monica's passion for educating and inspiring readers saw the PlantMiner blog recognised by Feedspot as one of the Best Australian Construction Blogs in 2018 and 2019. PlantMiner is Australia's largest online construction marketplace. Sign up as a vendor to find and engage with civil and commercial contractors across Australia. Alternatively, if you're looking for plant and equipment you can compare equipment and subcontractor quotes from vendors near you in just a few steps.