Question

You want to generate leads with your adwords campaign by encouraging people to fill in an interest form on your website. what do you need to know to measure return on investment (roi) for this campaign?

Answer 1

The correct answer is - "How much you have spent on the campaign compared to the value of leads generated?"

Return on Investment, also known as ROI, measures the ratio of the profits to the advertising costs.

Therefore, to measure the ROI for the given campaign in the question, it is necessary to calculate how much profit has been made from the adwords compared to how much has been spent on those adwords.

Answer 2

It seems the options are missing in the question.

However, the answer of this question is “ How much spent on the campaign  comparison to the value of leads generated”

This is because the ROI actually about the ratio of profit to advertising costs. And also, you have to measure the profit as the result of the advertisement and the also the spending on those advertisement . so That the comparison can made  . Moreover the expanding form of ROI is return on investment