To find the markup rate, use the following formula:
\text{Markup Rate} = \left( \frac{\text{Markup}}{\text{Cost}} \right) \times 100
Here, the cost is $125 and the markup is $23.75.
Substituting the values into the formula:
\text{Markup Rate} = \left( \frac{23.75}{125} \right) \times 100
Calculate the division:
\frac{23.75}{125} = 0.19
Multiply by 100 to get the percentage:
0.19 \times 100 = 19\%
Therefore, the markup rate is 19%.