Table 1: Pepita Disco Performance, 2011 (UYU in millions)

Units sold	100 million units
Revenue	200
Variable costs
Materials	30
Direct labor(manufacturing,sales)	40
Opearational costs(manufacturing,inventory,delivery)	30
Other variable costs	20
Margin on Sales	80
Fixed Costs
Marketing and advertising	10
Research and development	10
Other fixed costs(e.g head office)	40
Net margin	20

a. Reduce variable costs per unit 10% and, as a result, unit sales decreased 10%?