Let’s take a look at the price spikes and see what that could mean to a U. S. family in 2050, when the world’s population is expected to reach 9.5 billion people. Wheat, which is used to make bread, sold for $125.30 per metric ton in January 2002. At its peak in 2008, it sold for $439.70 per metric ton. The average price of bread was $1.49 a loaf in 2002 and $1.68 in 2008. What do you think a loaf of bread will cost in 2050?