What does 2 Kings 6:25 mean?

The siege dragged on so long that there was a severe famine in Samaria. Food was so scarce that a donkey's head sold for a fortune, and a little dove's dung cost a lot too. 2 Kings 6:25 - Modern Text Bible

(The situation inside the city becomes desperate, with people paying outrageous prices for the most unappetizing food.)