If Ava ate 5 wheat crackers, which represents 5 percent of the entire box, we can find the total number of crackers in the box by using the formula for percentage:
\[ \text{Total crackers} = \frac{\text{Number of crackers eaten}}{\text{Percentage eaten}} \]
In this case:
\[ \text{Total crackers} = \frac{5}{0.05} \]
Calculating that gives:
\[ \text{Total crackers} = 100 \]
So, there were 100 crackers in the entire box.