To find the percentage of 30 out of 600, you can use the formula:
\[ \text{Percentage} = \left( \frac{\text{part}}{\text{whole}} \right) \times 100 \]
In this case, the part is 30 and the whole is 600:
\[ \text{Percentage} = \left( \frac{30}{600} \right) \times 100 = 0.05 \times 100 = 5% \]
So, 30 out of 600 is 5%.