Here are the steps for setting up remarketing ads:

• Sign in to Google ads and click campaigns from the page menu.
• Select the new campaign option by clicking the plus icon.
• Set your campaign goal as Sales and campaign type as display.
• Provide the URL of the website which you want the target customers to visit and set the name for your campaign. Click continue.
• Enter the budget along with the bidding details and click on next.
• Click more on the campaign settings page.
• Click the use dynamic ads feed for personalized ads after expanding the dynamic ads section.
• Choose the business type for your feed from the drop-down menu and select the targeting options in the targeting section.
• Create your responsive display ads and click create a campaign.

Standard and dynamic remarketing are the two types of remarketing on Google display ads.

Remarketing ads can show relevant ads on Google Display Network, Google Sites, Mobile apps and Google Search.

Here are the steps for creating a remarketing audience in Google ads:
1. Sign in to Google Analytics and click on Admin in the screen’s bottom left corner.
2. In the middle column bottom, click on Audience definition. A little menu appears from which you need to click Audience. It is the place where all the audiences can be found in Analytics. Here you need to click on the red button named New Audience.
3. Select the account for which you are making the audience under the Audience Source.
4. Click on Create new under the Audience Definition for creating a brand new audience list with a certain set of rules. Then a window will open offering different ways of segmenting your audience.
5. The audiences must be imported into Google Ads before clicking on Publish.

Good CTR for Google remarketing ads is 2% or higher but it varies depending on the industry.