You can use the following form to decide about your village setups!
Information
This page provides the following numbers to help you assess your setups. Just enter the level of your barracks and your desired unit counts to calculate everything you need for them!
Please keep in mind that you don’t have to create a very high defense value or a 100% balance. Defensive villages might have different needs. Also, a fully balanced setup with little defense value or a high defense value against only one type of unit are always undesirable.