To find the percentage of women surveyed who shop at a local grocery store, we can use the following formula:
\[ \text{Percentage} = \left(\frac{\text{Number of women shopping at the store}}{\text{Total number of women surveyed}}\right) \times 100 \]
From the data provided:
- Number of women shopping at the local grocery store: 31
- Total number of women surveyed: 39
Now we can plug these numbers into the formula:
\[ \text{Percentage} = \left(\frac{31}{39}\right) \times 100 \]
Calculating the fraction:
\[ \frac{31}{39} \approx 0.7949 \]
Now we multiply by 100 to convert it to a percentage:
\[ 0.7949 \times 100 \approx 79.49 \]
Rounding to the nearest whole number, we get:
\[ 79% \]
Thus, the percentage of women surveyed who shop at a local grocery store is approximately 79%.