The final stage of the sales funnel is the action that you're intending them to perform. In most cases this is the purchase. Again, how well you move them through the various stages is going to set you up with a specific conversion for this action. For example, if 100 people click on your offer and 10 people enter your sales funnel but only purchase people purchase, then you have a 2 percent conversion. 
It’s important to note that there is not a single agreed upon version of the funnel; some have many “stages” while others have few, with different names and actions taken by the business and consumer for each. In the diagram below, we’ve done our best to pull out the most common and relevant funnel stages, terms, and actions so this information is useful to as many marketers as possible.
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