Lefola Limited is the only manufacturer of product G_Easy in the Popa Land. It has provided documented levels of demand at certain selling prices for product G_Easy which are as follows:

Price per unit Demand Units Total costs

7 000 0 3 000

6 000 1 5 000

5 000 2 8 000

4 000 3 12 000

3 000 4 17 000

2 000 5 23 000

1 000 6 30 000

Required:

Using a tabular approach, calculate the marginal revenues and marginal costs for product G_Easy at the different levels of demand, and so determine the selling price at which Lefola Limited's profits are maximized.