“Marginal revenue” refers to the:

1.revenue earned on the last unit sold.

2.variable cost to produce an extra unit.

3.total revenue divided by the total number of units sold.

4.change in total revenue that results from selling an extra unit.

Answer:

MEANING OF MARGINAL REVENUE

MARGINAL REVENUE is the supplementary revenue which is produce by expanding produce transaction by one unit .

FORMULA OF MARGINAL REVENUE

MARGINAL REVENUE = CHANGE IN TOTAL REVENUE

CHANGE IN QUANTITY SOLD

SO THE ANSWER OF  QUESTION IS = OPTION 4 that is change in total revenue that results from selling an extra unit .