A local developer is the owner of the entire property rights of a sports club located in Muscat. The club encompasses various facilities, including a restaurant, squash courts, snooker room, gymnasium, and swimming pool, all situated on a $10,000m^2$ site. Considering the option of selling both the property and the operational business as a going concern, the owner has sought an open market valuation for this purpose.

To facilitate the valuation process, the owner has supplied financial details from the last trading year, including gross receipts from the restaurant, outside catering, and membership subscriptions, amounting to OMR $100,000,$ OMR $20,000,$ and OMR $10,000,$ respectively. Total purchases for the year were OMR $30,000.$ Expenditures included OMR $20,000$ for wages and national insurance, OMR $7,000$ for bank interest and charges, OMR $5,000$ for office expenses, OMR $3,000$ for vehicle servicing and petrol, OMR $4,000$ for electricity and laundry, and OMR $1000$ for repairs to land and buildings. Additionally, the latest balance sheet reveals that fixtures and fittings are currently valued at OMR $150,000,$ and there is OMR $20,000$ in stock and OMR $50,000$ in cash available for the day$-$to$-$day operations of the business.

To calculate the total 'going concern' value, assuming that $50\%$ of the final net profit is allocated as property rental $($yielding $6\mathrm{.}0\%)$ and the business profit multiplier is $2,$ the computation can be conducted accordingly.