9. (6 points) A company transported a batch of ceramic vases from a certain place, and 50 of them were damaged. If the remaining vases are sold at 10 yuan each, the company will incur a loss of 300 yuan. If the price is increased by 2 yuan, the company will make a profit of 800 yuan. The company transported $\qquad$ ceramic vases in total.
【Answer】Solution: The remaining number:
$$
\begin{aligned}
& (300+800) \div 2, \\
= & 1100 \div 2, \\
= & 550 \text { (pieces); }
\end{aligned}
$$

Total number: $550+50=600$ (pieces);
Answer: The company delivered a total of 600 ceramic vases.
Therefore, the answer is: 600.