THORNTON, Colo. (CBS4)– The national coin shortage helped one school with a spending spree. Office Depot is among some businesses asking customers to round up their total, and donate that change to charity.

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The Office Depot in Thornton collected the difference and gave all the proceeds to Dr. Martin Luther King Jr. Early College. The Denver school had $18,566 to spend in two hours on Thursday.

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Faculty and staff raced to grab what they could. The principal didn’t believe it when she got the email.

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“This type of email could read like a prank, but it’s not, this is real. I was super excited to find out that information,” said principal Kimberly Grayson.

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The store said it collected the money from mid-November to early January.

Jennifer McRae