What CPC CPA CPI in digital marketing?

What CPC CPA CPI in digital marketing?

CPC (Cost Per Click): is a paid advertising term where an advertiser pays a cost to a publisher for every click on an ad.
CPC is used to determine costs of showing users ads on search engines, Google Display Network for AdWords, social media platforms and other publishers.
A good cost-per-click is determined by your target ROI.

CPA (Cost Per Action): referred to as cost per acquisition – is a metric that measures how much your business pays in order to attain a conversion.
Along with CPC, your CPA will contribute to your overall Google ad costs. Advertisers that have a high-quality PPC-driven pipeline are often better off with CPA.
To calculate the cost per acquisition, simply divide the total cost by the number of new customers acquired from the same channel/campaign.

CPI (Cost Per Install): CPI stands for Cost Per Install and is essentially a type of CPA campaign for apps.
A Cost Per Install is a marketing strategy targeting mobile device users to download an app that’s been advertised across platforms and in social media. Whenever a user downloads the app, the advertiser receives either a fixed or bid rate.
Cost Per Install is calculated by dividing the ad spend (over a specific time period) by the number of new installs from that same period.