Walmart reported better-than-expected second-quarter earnings and raised its yearly forecast as inflation-battered shoppers flocked to its low-priced food, clothing and home goods.Walmart shone thanks to its affordability. Comparable sales, excluding fuel, rose 4.2% in the second quarter since the same period last year, beating expectations. Its online sales soared 22% in the US – and customers spent more than usual, with transactions up 3.6% and average spending rising 0.6% since the same period last year. ...