Write SQL query to solve given problem: Find the net profit of the floral products which were delivered in 2021.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT SUM(REPLACE(T1.`Unit Price`, ',', '') - REPLACE(T1.`Unit Cost`, ',', '')) FROM `Sales Orders` AS T1 INNER JOIN Products AS T2 ON T2.ProductID = T1._ProductID WHERE T1.DeliveryDate LIKE '%/%/21' AND T2.`Product Name` = 'Floral'