Salem also own an agriculture land which he used for planting wheat. The following information is related to his first harvest activity during the year 1444 H.C. a. The total amount of the crop is 1800 kg, however 100 kg of the crop is spoiled b. Total amount of labor expense for farming is SR 800. c. He paid expenses of SR200 for seeds. d. Other agriculture expenses were SR 1000 e. Salem used modern means of irrigation, which cost SR 3,000 f. The selling price of wheat is SR 4 per kg calculate zakat