In an effort to increase sales of spinach rolls, a vendor offered samples at a grocery store. The store sold an average of 10 boxes a day without offering samples. On the day the vendor offered samples, the store sold 25 boxes. What was the percent increase in sales of spinach rolls when samples were offered?
First find the difference in sales by subtracting the initial number of boxes sold from the final number: 25 boxes - 10 boxes = <<25-10=15>>15 boxes
Then divide that number by the initial number of boxes and multiply by 100% to find the percentage increase: 15 boxes / 10 boxes * 100% = 150%. Answer: \boxed{150}.
To find the percent increase in sales, you can use the following formula:
Percent Increase = ((New Value - Old Value) / Old Value) x 100
In this case, the old value is the average daily sales of 10 boxes, and the new value is the sales when samples were offered, which is 25 boxes.
Using the formula:
Percent Increase = ((25 - 10) / 10) x 100
Simplifying:
Percent Increase = (15 / 10) x 100
Percent Increase = 1.5 x 100
Percent Increase = 150%
Therefore, the percent increase in sales of spinach rolls when samples were offered is 150%.
To find the percent increase in sales when samples were offered, you need to calculate the difference between the original number of boxes sold without samples and the number of boxes sold with samples, and then divide that difference by the original number. Finally, multiply the result by 100 to get the percentage.
First, find the difference in the number of boxes sold:
25 (boxes sold with samples) - 10 (boxes sold without samples) = 15
Next, divide the difference by the original number of boxes sold without samples:
15 / 10 = 1.5
Finally, multiply the result by 100 to find the percentage:
1.5 * 100 = 150%
Therefore, the sales of spinach rolls increased by 150% when samples were offered.