ACCA F2 练习题
　A company manufactures a single product which it sells for £15 per unit.
　　The product has a contribution to sales ratio
　　of 40%.The company’s weekly break-even point is sales of £18,000.
　　What would be the profit in a week when 1,500 units are sold?
　　A £900
　　B £1,800
　　C £2,700
　　D £4,500
想知道是怎么算出来的,company’s weekly break-even point is sales of £18,000.这句话代表什么,