AE 459 Ad A 50 kW combine harvester has an initial purchase price of $25,000.00. It operates at a speed of 8 km/h. The rated operating width of the machine is 2 m. The annual utilisation of the combine is 216 ha. The field efficiency is 75 per cent. Other relevant data are as follows: Interest on investment 5 % of initial purchase price of combine Fuel consumption 15 litres per hour Cost of fuel $0.50 per litre Lubricant consumption 18 % of fuel cost Insurance 0.25% of initial purchase price Housing 1.00 % of initial purchase price Repairs and maintenance cost 20 % of initial purchase price Labour charge $6.50 per hour Hiring cost $74.07 per hectare Assume that the straight-line method of depreciation is applicable and that the period of depreciation is 10 years. Also, assume that the salvage value of the combine is 10% of the purchase price of the combine and that there is no tax levied on the combine. i. ii. Find the total harvesting cost per hectare Compute the variable cost per hectare Determine the break-even point