How much money will I make and when will I be paid from YouTube monetization?

YouTube ads are similar to Google ads. It’s essentially an ad-placement auction. The amount you earn for each clicked ad, while small, will vary according to a number of factors, so it’s difficult to make predictions. The bottom line is this: the more people who watch videos that use your music, the higher the probability of clicked ads. The more ads clicked, the more you earn.

YouTube reports ad revenue quarterly to CD Baby.
You earn 70% of the total revenue generated from the usage of your music on YouTube and Facebook. CD Baby keeps only 30%.

If you’ve earned money, you can view that inside your CD Baby account under "Sales and Reports" then click on "Sales and Accounting."