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brett.lindenberg Brett Lindenberg is the co-founder of BackofNapkin.co. Brett has interviewed hundreds of entrepreneurs, gathering their stories and extracting the insights behind successful startups big and small. His passion lies in making startup calculations accessible so every dreamer has the numbers they need to take the leap. At home, Brett enjoys life’s best calculations: quality time with his wife and two daughters.

Custom Septic Tank Pumping Cost Calculator & Quote Estimator

November 21, 2024• Category: Business Calculators

How much will it cost to pump your septic tank? This tool is designed to give you an estimate based on tank size, pumping rate, and access. Whether...

Hot Dog Cart Earnings & Financial Projection Calculator

November 21, 2024• Category: Food Business Calculators

Whether you’re thinking about a weekend side hustle or grilling your way to a full-time income, this tool helps you cut through the mustard and see your...

Gourmet Chicken Sandwich Profit & Revenue Calculator

November 20, 2024• Category: Food Business Calculators

The Chicken Sandwich Profit Calculator is your go-to tool for discovering how much revenue and profit you can make selling chicken sandwiches. Just input your...

Independent Donut Shop Business Financial Projections Calculator

November 20, 2024• Category: Food Business Calculators

Use this financial projections calculator to project revenue, operating costs and net profits and get a clear picture of your donut shop’s potential. Plus,...

Solo Trucking Business Financial Projections Calculator

November 19, 2024• Category: Business Calculators

Running an independent trucking business that makes $100K or more in annual revenue can make it sound like a fantastic business. But don’t overlook the...

Laundromat Financial Projection & Cash Flow Calculator

November 18, 2024• Category: Business Calculators

Dream of owning a laundromat but worried about getting soaked in bad investments? Our Laundromat Financial Calculator helps you separate the suds from the...

Pet & Dog Waste Removal Business Profit / Revenue Calculator

November 18, 2024• Category: Business Calculators

Running a pet poop cleanup business might not be glamorous, but someone’s gotta do it! Enter the Pet and Dog Waste Business Projections Calculator: the...

Ideas are a Multiplier of Execution Calculator

November 17, 2024• Category: Business Calculators

Everyone has ideas. Few actually execute. Inspired by Derek Sivers’ framework that ‘ideas are just a multiplier of execution,’ this tool...

“1,000 True Fans” Calculator: Inspired by Kevin Kelly

November 17, 2024• Category: Business Calculators

Turn your passion into profit with the Kevin Kelly Inspired “1,000 True Fans” Calculator. Whether you’re an artist, content creator, or...

House Cleaning Time Calculator: How Long to Clean a House?

November 16, 2024• Category: Business Calculators

This calculator helps you estimate how long it will take to clean a house and what it might cost. Whether you’re a professional cleaner setting prices or...

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