Stationery 37811

Monday. 668 euros
Tuesday. 624 euros
Wednesday. 816 euros
Thursday. 584 euros
Friday. 826 euros
The table records sales in the stationery store during the working days of one week per month.
If the average daily sales during the weekend were 860 euros, by what percentage would the stationery store exceed the weekly average?

Correct answer:

p =  22.2285 %

Step-by-step explanation:

$$\begin{gathered} t_2=860\text{eur} \\ {t}_1=\frac{668+624+816+584+826}{5}=\frac{3518}{5}=703.6\text{eur} \\ p=100\cdot \frac{t_2-t_1}{t_1}=100\cdot \frac{860-\frac{3518}{5}}{\frac{3518}{5}}=22.2285\% \end{gathered}$$

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