Each of us is a SEO salesperson, at least in part; it’s our job to help clients understand the value delivered by our services. This post share a method used in the past not only to differentiate brand from non-brand traffic, but also to assign a value to non-brand traffic that a PPC-minded manager can appreciate.
Google Search Console’s “Search Analytics” report
Adding “Suggested CPC” to non-brand clicks
Have a look at these points here at: http://searchengineland.com/calculating-value-organic-traffic-243796