Revenue Concept SS2 Economics Lesson Note
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Lesson Notes
Topic: Revenue Concept
Revenue refers to the income derived by a producer or firm from business activities or the sale of his or its products.
TYPES OF REVENUE
- Total Revenue (TR): This refers to the total income which a firm derives from the sale of its products.
Total Revenue = Price x Quantity (TR = PxQ)
- Average Revenue(A.R): The average revenue is the same as the price per unit of the commodity. It is derived by dividing the total revenue by the total unit of the commodity sold.
= = P
- Marginal Revenue: This is the additional income earned by selling an extra unit of a commodity.

REVENUE SCHEDULE OF A FIRM
| Quantity Sold (Output) | Total Revenue (N) | Average Revenue | Marginal Revenue |
| 0 | 0 | 0 | – |
| 1 | 400 | 400 | 400 |
| 2 | 700 | 350 | 300 |
| 3 | 900 | 300 | 200 |
| 3 | 1040 | 260 | 140 |
| 5 | 1150 | 230 | 110 |
The most profitable output is the point where marginal cost is equal to marginal revenue.