To calculate the percent error, you can use the formula:
\[ \text{Percent Error} = \left(\frac{\text{Actual Value} - \text{Estimated Value}}{\text{Actual Value}}\right) \times 100 \]
In this case, the actual value is 594 and the estimated value is 550.
Substituting the values into the formula:
\[ \text{Percent Error} = \left(\frac{594 - 550}{594}\right) \times 100 \]
Calculating the difference:
\[ 594 - 550 = 44 \]
Now dividing by the actual value:
\[ \frac{44}{594} \approx 0.07405 \]
Now, multiplying by 100 to get the percent:
\[ 0.07405 \times 100 \approx 7.41 \]
Rounding to the nearest percent, the percent error is approximately 7%.
So, the answer to enter is:
7