Mazoon Dairy Company is the largest integrated dairy company in the Sultanate of Oman with a capital outlay of OMR 100 million. The site is located in AsSunainah in the Al Buraimi Governorate and is spread over an area of 15 sq kms. Mazoun Diary produces a wide array of products, including fresh milk, long life milk, flavoured milk, yoghurt, laban, ice-cream, cheese and juices, reaching our consumers across the GCC region. During the month of February 2022, the following transactions have occurred with regard to the flow of material into and out of its store room. The company had 50 workers in its factory payroll. In the month of February 2022, a worker Qais processed 200 units of a product working for 48 hours. The company give remuneration to its employees at an hourly rate of OMR 5.500 per hour worked. The estimated time to process one product is 6 minutes.

Calculate the gross earnings of Mr Ahmed under Halsey and Rowan plan.