What did Pollan say his pay was for a week of work on the farm in The Omnivore's Dilemma?

In short, Pollan was not paid in money for his labor; instead, he was paid in produce.
At the end of his week of labor at the farm, Pollan selected a sampling of produce to make himself a meal. He intended to create a meal for which he had worked himself in order to understand its value (instead of simply buying it from a fast food chain or store).
So he selected two of the chickens that he had helped slaughter earlier in the week—as well as a dozen eggs he had personally gathered—and a dozen ears of sweet corn that he had harvested personally. The farmer, Joel, refused to accept payment, however, instead insisting that his week of labor was more than enough to cover the cost of what he was taking—which would be $2.05 per pound of chicken and $2.20 per dozen eggs.