Cost Margin Calculator is an iPhone application developed by Renowne LLC that aims to empower business owners by providing them with accurate calculations for their financial needs. This easy-to-use tool, endorsed by Marcus Lemonis from CNBC's The Profit, allows users to calculate cost, margin/markup, price, commission, and even break-even points for promotional activities.

With 6 functional calculators, including Cost, Margin/Markup, Price, Commission, Break-Even, and a Standard Calculator, this app covers a wide range of business calculations. Users can easily toggle between margin and markup calculations, allowing for flexible pricing strategies. The app also features an automatic import function that transfers results from the Standard Calculator to the Cost field, saving time and effort.

One standout feature of the Cost Margin Calculator is its roll calculation function, which enables users to add multiple margins and markups to determine the final price. This flexibility allows for quick adjustments and analysis of different pricing scenarios.

Marcus Lemonis personally uses this app for his own calculations, as seen on episodes of CNBC's The Profit. By utilizing this simple yet powerful business tool, users can gain a better understanding of their numbers and make informed decisions to achieve their business goals.