Asda’s determination to retain its crown as the cheapest grocery retailer is paying off, with The Grocer 100 survey showing it has maintained a slender lead over Tesco for the past 12 weeks.

The survey found that the average price of Asda’s 100-item basket was £169.53 between June 13 and August 29, compared with £171.90 over at Tesco.

For more details, see The Grocer tomorrow.