How might an advertiser compare, over time, two campaign metrics such as “cost per conversion” and “cost”?
- A) Run an impression share report and select to display the two metrics.
- B) Filter all keywords with an average position greater than three.
- C) Select the two metrics in “Graph options” on the Campaigns tab.
- D) Search the account for keywords with high average cost-per-click (CPC) bids.
Explanation: You can compare two metrics using the drop-down menus just above the graph on the left. Click each drop-down menu and select the metric you’re interested in. For example, if you wanted to gauge the effectiveness of a particular keyword, you could choose to view impressions and clicks at the same time.
You can read more here: https://support.google.com/partners/answer/2454067?hl=en