How to find out the number of attracted new customers for a period in Google Analytics?

#1
Hello!
Can you please tell me how to find out in Google Analytics the number of attracted new customers for a certain period?

For example, you need to find out how many new customers were attracted for each advertising source in December.
Is it possible to do this through special reports like this ?:

Source or channel | Users | New users | New clients | Transactions | Income