2010 2009
Group sales growth (1) (5.0)% (5.3)%
International (1) (4.7)% (4.5)%
UK (1) (5.6)% (6.7)%
e-Commerce revenue share 43% 36%
Headline Group return on sales (2) 8.1% 9.6%
Headline ROCE (3) 16.7% 18.5%
Stock turn (per year) 2.8x 2.7x
Revenue per head (4) (£’000) 175 170
Number of customers (millions) 1.5 1.5
Net debt to headline EBITDA 1.6x 1.7x
Interest cover(5) 19.6x 15.4x


(1) Underlying revenue growth, adjusting for currency and trading days
(2) Headline operating profit expressed as a percentage of revenue
(3) Headline operating profit expressed as a percentage of net assets plus net debt
(4) Revenue on a like for like basis (2010 and 2009) adjusting for trading days and foreign exchange
(5) Based upon headline EBITA: Earnings before interest, tax and amortisation (inc. government grants)