Final answer:
The rate of change in sales at Juan's appliance store from July to August is a 27.5% decrease. This is found by dividing the change in sales by the July sales and then multiplying by 100.
Step-by-step explanation:
To calculate the rate of change, also known as the percentage decrease, for the sales between July and August at Juan's appliance store, we follow this process:
- Change in quantity: Subtract the August sales from the July sales. $181,800 - $131,805 = $49,995
- Original quantity: The July sales, which are $181,800
- Divide the change in quantity by the original quantity: $49,995 / $181,800
- Multiply the result by 100 to get the percentage: ($49,995 / $181,800) × 100
Doing the calculation, the rate of change is:
$49,995 / $181,800 = 0.275 or 27.5%, meaning there was a 27.5% decrease in sales from July to August