Infinity on High with a 54% decline during a post-Grammy week. The album rose to number three in its third week with 79,000 units sold. In its fourth week, the disc slipped to number four and sold 67,000 copies. "Infinity on High"s sales again fell in its fifth week, moving 58,000 copies and descending to number eight on the chart. In its sixth and last week in the top ten it fell to number nine and sold 43,000 copies. In April 2007, the album was certified Platinum by the Recording Industry Association of America (RIAA), denoting the shipment of one million copies. It
Infinity on High top ten, it went on to spend a combined total of twenty-six weeks inside the top twenty and received a Platinum accreditation from the Recording Industry Association of New Zealand (RIANZ) for 15,000 shipments. In the United Kingdom, the album debuted at number three with 64,054 first week sales and made nine weeks in the top twenty, being certified Platinum by the British Phonographic Industry (BPI) for 300,000 units shipped. It went on to sell 446,807 in the UK to date January 2015. The album debuted at number two in Canada with 21,000 first week sales. "Infinity" was certified Platinum