 By 1978 "Queen Elizabeth 2" was breaking even with an occupancy of 65%, generating revenues of greater than 30 million per year against which had to be deducted an annual fuel cost of £5 million and a monthly crew cost of £225,000.With it costing £80,000 a day for her to sit idle in port, her owners made every attempt to keep her at sea and full of passengers.As a result, as much maintenance as possible was undertaken while at sea.