How to predict advertising campaigns?

Question

Marketing

It is necessary to predict the price of the final order / sale, depending on the source of placement.
What methods, options for this exist and are known to you, please share information

Answer 1

You need to know some inputs:
- site conversion - cost per click (usually can be predicted
in a volume-adjusted tool, or with a small test budget)
%, you can get 50 leads for 30,000 or 600 rubles/lead.
If you do not have any input data, you do not need to run many sources at once, run one by one, with end-to-end analytics, and you will be able to build forecasts.
There is nothing better than a test budget and an understanding of the tool being used.