Commission rate: if the commission on the sale of $73.20 worth of clothes is $8.78, what is the commission rate? (round to the nearest percent)

To find the commission rate, we use the formula:

\[
\text{Commission Rate} = \left(\frac{\text{Commission Amount}}{\text{Total Sales}} \right) \times 100
\]

In this case:
- Commission Amount = $8.78
- Total Sales = $73.20

Now, we substitute the values into the formula:

\[
\text{Commission Rate} = \left(\frac{8.78}{73.20} \right) \times 100
\]

\[
\text{Commission Rate} = 0.1199 \times 100 = 11.99\%
\]

Rounding to the nearest percent, the commission rate is **12%**.

Would you like more details on the calculation, or do you have any questions?

Here are five related questions:
1. How would the commission rate change if the commission was $10 instead of $8.78?
2. What would the commission be on a $100 sale with the same 12% commission rate?
3. How do you calculate the total sales if you know the commission and the commission rate?
4. How would the total commission change if the sale amount doubled?
5. What is the formula for calculating commission rates in a tiered system?

**Tip:** Always remember to multiply by 100 when converting a decimal to a percentage!

Learn how to calculate the commission rate for a $73.20 sale with an $8.78 commission. This example covers percentage calculations and ratio concepts, and is perfect for students in Grades 5-7.

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