Company XYZ is a farming company. The company are famous for producing strawberries and blueberries. The variable cost of producing and selling one box of strawberries is $6, while the variable cost of producing and selling one box blueberries is $10. Each box of strawberries is selling for $20, while a box of blueberries sells for $26. The company produces and sells 5 boxes of strawberries for every 2 boxes of blueberries. Assuming a fixed cost of $204,000.

How many boxes of blueberries need to be produced and sold to achieve breakeven?