The gross profit percentage decreased from 36.5% in 2014 to 24.8% in 2015. What is the trend in this change?

Select one:

a. The trend cannot be determined unless the dollar amount of the change is also know.

b. This change represents a downward, or negative, trend.

c. This change represents an upward, or favorable, trend.

d. The answer depends upon whether net sales increased or decreased during the period.