What’s Going On Here? Tesco (UK’s 100-year-old largest retailer), reported weaker-than-expected sales growth thanks to a rotten grocery market. What Does This Mean? Tesco’s UK sales grew only 0.4% last quarter (down from 1.7% in the previous one). Sales in central Europe fell by 5%. Tesco (like other retailers) pointed to the weather: an unseasonably cold May and the previous hottest-since-records May was a…