Last month, when 10,000 units of a product were manufactured and sold, the cost per unit was $60. At this level of activity, variable costs were 50% of total unit costs. If 9,500 units are manufactured and sold next month and cost behaviour patterns remain unchanged, how will costs be affected? Multiple Choice Total cost per unit will increase. O Total variable costs will remain unchanged. O O Total cost per unit will decrease. Variable cost per unit will increase