Price per unit Quantity demandeUnits Total cost of productio
Price per unit                          Quantity demande(Units)                   Total cost of production
 $200                                                      1                                                    $200
 180                                                       2                                                      300
  160                                                       3                                                      350
  140                                                        4                                                      360
 120                                                        5                                                      375
  100                                                       6                                                      395
  80                                                          7                                                      425
A monopoly producer of a foreign language translation software package faces the demand and cost structure
 What is the marginal revenue from the sale of the third unit?
Solution
Following is the Total Revenue Schedule –
Price
Quantity demanded
Total Revenue
(Price * Quantity demanded)
$200
1
$200
180
2
360
160
3
480
140
4
560
120
5
600
100
6
600
80
7
560
Calculate marginal revenue from sale of 3rd unit (MR3) –
MR3 = Total Revenue from sale of 3 units – Total Revenue from sale of 2 units
= $480 - $360
= $120
Thus, the marginal revenue from sale of 3rd unit is $120.
| Price | Quantity demanded | Total Revenue (Price * Quantity demanded) | 
| $200 | 1 | $200 | 
| 180 | 2 | 360 | 
| 160 | 3 | 480 | 
| 140 | 4 | 560 | 
| 120 | 5 | 600 | 
| 100 | 6 | 600 | 
| 80 | 7 | 560 | 


