The CPM model refers to advertising that is based on the advertisements shown!

That's a thousand impressions at 1 CPM.

The total price paid in a CPM model is easy to calculate by multiplying the CPM rate by the number of CPM units.

For example:

1 million impressions (ads) at 10 CPM equates to a total price of 10 thousand Dollar.
A 10 million impressions (ads) at 15 CPM for a total price of 150 thousand Dollar.
.... etc.

So it's always 1 CPM this stands for a thousand impressions,

At some point you will be confronted with "Pay Per Sale", a payment model for online advertising in which payment is based exclusively on qualified sales

The number format defines how the number of decimal places, the currency symbol, commas to separate thousands, and the display of negative numbers. Example:

A separator is a sequence of one or more characters that define the boundary between separate, independent areas in plain text Mathematical expressions

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