Yes, I believe the sales. The company states that they are getting their sales figures straight from GNC:
Heathrow Natural Food & Beverage, Inc. Announces First Week Test Sales Results at General Nutrition Center
LAKE MARY, FL--(Marketwire - September 28, 2010) - Heathrow Natural Food & Beverage, Inc. (PINKSHEETS: HRNF) is pleased to announce its first week test sales at GNC were far better than expected. For the week of 9/8 to 9/15 -- GNC sold 72 units of Resveratrol Plus & 60 units of ACAI Plus, for a total of 132 units over eleven stores. Extrapolated over 4,000 stores would equate to 48,000 units per week or 2.5 million units per year. This would generate $72,000 per week or $3.8 Million of gross revenue per year. Sales results are provided weekly to the company directly from GNC's Pay on Scan system.