Cumulative gross profit is the total amount of profit a company has earned over a period of time, taking into account all costs associated with producing and selling its products or services. Gross profit is the difference between the revenue earned from sales and the cost of goods sold (COGS).

Cumulative gross profit is calculated by adding the gross profit earned in each period together over a specific time period, such as a quarter or a year. This cumulative total provides a measure of the overall profitability of the business over that period of time.

Cumulative gross profit is an important metric for businesses to track as it provides insight into their financial performance over time. By monitoring changes in cumulative gross profit, businesses can identify trends, measure the success of their sales and marketing strategies, and make informed decisions about pricing, production, and sales activities.

It's important to note that cumulative gross profit does not take into account other operating expenses, such as overhead costs or taxes. However, it is a useful measure of a business's ability to generate revenue and manage costs over time.