What is the difference between Perfume, Eau De Parfum (EDP), Eau De Toilette (EDT) and Cologne?

Perfume - is the strongest and longest-lasting of fragrance form.
Eau De Parfum (EDP) - has a perfume extract concentration between 15-30%. This compound has high fragrant intensity
Eau De Toilette (EDT) - has a perfume extract concentration between 5-15%. This compound has medium fragrant intensity
Cologne - has a perfume extract concentration between 3-8%. This compound has mild fragrant intensity and is less concentrated than EDP