How is the annual obligatory zakat calculated on a grape-cultivating land that yields 725 Syrian Pounds, with a net income of 225 Syrian Pounds after deducting expenses of 500 Syrian Pounds, given that it is irrigated by well water?

The majority of scholars hold that zakat (definition) is calculated on the entire agricultural yield without deducting expenses, while others are of the view that expenses should be deducted first, and then zakat paid on the remainder. This latter opinion is the more probable one. Therefore, 11,250 Lira must be given according to the more probable opinion, or 36,250 Lira according to the well-known opinion, bearing in mind that choosing the more difficult option is closer to piety.