What does 'Revenue of the concept' signify after deductions?

The term 'Revenue of the concept' after deductions refers to the net money generated from sales. This is calculated by taking the total sales revenue and subtracting any deductions such as returns, allowances, and discounts given. This figure is crucial as it represents the actual income retained by a business from its sales activities, giving a more accurate picture of financial performance.

The other options do not represent the concept accurately. Total sales before expenses would refer to gross sales, which does not account for deductions. Projected future income is a forward-looking estimate and does not reflect current revenue after deductions. Lastly, investment required for marketing pertains to expenses incurred to promote sales, which is distinctly different from the concept of revenue generated. Understanding these distinctions is vital for analyzing a company's financial health.