If Gatsby ends up with a favorable fixed overhead volume variance at the end of 2020, then:

1) A greater volume of its products was produced than was expected.

2) The cost of fixed overhead costs, such as the depreciation of the building, was higher than expected.

3) The number of direct labor hours used was less than the amount expected for the actual quantity of products made.

4) Fewer yards of denim were required than expected for the actual number of products produced.

5) Variable manufacturing overhead costs were more than the amount expected.