It is very important to understand return on ad spending to find out whether your marketing campaigns was successful or not. Return on ad spending is a key metrics that you need to find out to measure how effective your ads or marketing campaign were in terms of revenue generation. Let’s imagine you spent $1000 to advertise and market your product and generated $10,000 in sales, your return on ad spending is 1000 percent. When you know this metrics, you will be able to analyze the profitability of your marketing campaigns. When you understand return on ad spending, you can optimize your ad spending and maximize your returns.