What is the traffic growth metric and how is it measured?

TrendMD directs additional visitors to your website(s) via clicks on your internal links, which are distributed on third-party websites in the network. Your credit balance decreases by 1 credit when a click occurs on a link to your content featured on a third-party site. Traffic growth is calculated by dividing the additional visitors directed to a website through the TrendMD widget by the baseline traffic on that site.