On average, SEO is 12% of a typical marketing budget but generates 14% of leads.
Despite having 8% of the marketing budget, PPC generates only 6% of leads. If you are spending more of your marketing budget on PPC than SEO, then your lead generation program is costing you traffic and revenue.
It’s not just the number of leads generated from SEO that makes it such an important inbound tactic it is the quality of those leads.
When asked for the average percentage of leads converted to sales by marketing channels, marketers sighted SEO as the most effective marketing channel.