Have you encountered advertising metrics? Do you know what they are measured in?

Yes, I have encountered advertising metrics. The main metrics in advertising are measured in the following units:

• CTR (Click-Through Rate) — the percentage of clicks on the ad out of the number of impressions, measured in percentage.
• CPC (Cost Per Click) — the cost of a single click, measured in currency (e.g., dollars).
• CPM (Cost Per Mille) — the cost per thousand impressions, also in currency.
• Conversion Rate — the percentage of users who performed a target action out of the number of clicks or impressions, in percentage.

These metrics help evaluate the effectiveness of advertising campaigns and optimize them.