How do you calculate average cost-per click? Select one option.

Explanation: To calculate the average cost-per-click (CPC), you would divide the **total cost of all clicks by the total number of clicks**. This formula provides the average amount paid for each click on an ad within a specified time period or campaign. By dividing the total cost of clicks by the total number of clicks, advertisers can determine the average cost incurred for each individual click on their ads. This metric is essential for evaluating the efficiency and cost-effectiveness of advertising campaigns, helping advertisers assess their return on investment (ROI) and make informed decisions about budget allocation and campaign optimization strategies. Conversely, options such as dividing the total number of clicks by the total cost of all clicks or dividing the total number of impressions by the total cost of all clicks do not yield the average CPC and are not commonly used in advertising analytics. Therefore, the correct method to calculate average cost-per-click is to divide the total cost of all clicks by the total number of clicks.