Calloway Department Store buys men’s department jeans for $19.75 a pair and sells them for $37.88. What is the markup rate based on cost?

The markup rate based on cost can be calculated using the following formula:

Markup rate = (Selling price - Cost price) / Cost price

In this case, the cost price of jeans is $19.75 and the selling price is $37.88.

Markup rate = ($37.88 - $19.75) / $19.75
Markup rate = $18.13 / $19.75
Markup rate = 0.919 / 1

Therefore, the markup rate based on cost is approximately 91.9%.