GREENVILLE, S.C. -- A volunteer effort to get more students to graduate from Greenville County high schools is working.

The door-to-door sales pitch, called Opening Doors To Success, is an annual event, held the first Saturday after school starts.

Volunteers visit students who should have returned to school, but did not.

"You are selling them on themselves, on their future," said volunteer Brock Koonce.

In August, volunteers visited more than 100 students at Greenville, Berea and Greer High schools.

Ten of those students have now re-enrolled.

"I was happy they came to my house, I wanted to come back to Greenville, but nothing was pushing me," said 10th-grader Matthew McCullough.

McCullough got into trouble over the summer and spent some time in jail. He wasn't sure what to do.

"I knew I was messing up already big time, 9th grade two times I didn't think I was going to go ahead and finish," he said.

But McCullough is back. And so is Santos Cabrera. Volunteers found him last year after he quit ninth grade.

"I was kind of tired of school, coming every day," Cabrera. "The first reason was because I had a girlfriend and we broke up and I didn't want to see her again."

Cabrera was convinced to come back, by the man who is now his math teacher. He has dedicated himself to get good grades and catch up to his peers.

"Now I have a reason to finish it -- my parents -- so they have a better life, they give me a good life, I want my brother to have a better life than I did," Cabrera said.

McCullough hopes to go to college. He says now he knows to ask questions when he needs help.

"I'm not going to quit now, there may be some hold ups," he said, "but that won't make me quit."

Opening Doors to Success is part of the Graduate Greenville program.

Graduate Greenville also pays for full time graduation coaches to guide students after they return to class and summer programs to ease the transition for at risk 9th-graders.