The price of gas impacts many of us, and Labor Day weekend prices are the lowest they’ve been in 11 years. The thing is, about 80 percent of the price of gas depends on the price of oil.

Oil prices are not as easy to calculate as you might think. This week, oil bounced around near $44 a barrel. What does that mean, and how is it determined? To understand how that price gets set, Lizzie O’Leary speaks to Scott Tong from Marketplace’s Sustainability desk. 

Listen to the interview in the audio player above.