Cost per Click or Pay per Click is the fee paid to the service provider from the number of clicks you get. With CPC, your site will be displayed in the "special" section of the SERP.
Pay per click aims to bring traffic briefly. Sites with paid advertisements will appear at the top and bottom on the first page of the SERP, and therefore, will increase the chance of getting clicks.
With SEO, you need quite a long time to reach the top position of the first page. Contrariwise, you will get there faster with PPC.
Cost per click is derived from the fees to advertising service providers divided by the number of clicks obtained from advertisements. Here's the short formula:
CPC = Cost paid ÷ Number of Clicks
Clicks can be tracked by the provider by reading hyperlinks. Clicks are counted when the user clicks on your site link. If it only appears on the SERP, it is not counted as a click, but only an impression.
Pay per Click (PPC)
Biaya per Klik (BPK)