CPCは、広告の表示によって得られるユーザーのクリック1回あたりのコストを示す指標です。
CPC（円）＝広告掲載費用÷クリック数
主に広告掲載後の効果測定時の指標で、クリック単価はサイト訪問者獲得単価と考えることもできます。
Cost Per Click (CPC)
CPC is a metric that shows the cost per click that a user receives from displaying an ad.
CPC (yen) = advertising cost ÷ number of clicks
It is mainly used as an indicator to measure the effectiveness of advertisements after they are published, and the cost per click can also be thought of as the cost per site visitor acquisition.