13. (15 points) A clothing store purchased 600 pairs of gloves at 12 yuan per pair, and sold 470 pairs at 14 yuan per pair. The remaining pairs were all sold at 11 yuan per pair. Find out how much profit the clothing store made from selling this batch of gloves.


【Analysis】First, according to the formula total price $=$ unit price $\times$ quantity, multiply the profit per pair of gloves by 470 to find out how much profit was made from the first 470 pairs of gloves sold; then, multiply the loss per pair of the remaining gloves by the quantity to find out how much was lost on the remaining gloves; finally, subtract the amount lost on the remaining gloves from the profit made on the first 470 pairs of gloves to find out the total profit made by the clothing store from selling this batch of gloves.

【Solution】 $(14-12) \times 470-(12-11) \times(600-470)$
$$
\begin{array}{l}
=2 \times 470-1 \times 130 \\
=940-130 \\
=810 \text { (yuan) }
\end{array}
$$

Answer: The clothing store made a total profit of 810 yuan from selling this batch of gloves.