Between notebooks and backpacks and electronics and apparel, we know how quickly costs can add up.

As children to go back to school this fall, we’re reminded of the millions of children around the world who lack one of the most crucial back-to-school supplies of all: food. Without proper nutrition, children can’t focus, they can’t learn, and they can’t grow into strong, healthy adults.

This fall, the average American family will spend $669.28 on back-to-school supplies, according to the National Retail Federation. That’s $26.5 billion nationwide.

If Americans donated one-tenth of one percent of this amount to feed hungry children—or 6 cents per family—the U.S. could feed 104 million children around the world.

At the Stara Rescue Centre school in Nairobi’s Kibera