Wesfarmers trading update provides a reminder about the challenges facing the retail-centric company. Kmart’s earnings fell 56% in 1H22e on a sales decline of 10%. The fall in earnings suggests higher costs, some of which will persist as global supply chains become more expensive and online grows as a share of sales. While Kmart had a tough half, Bunnings earnings may have only fallen slightly and WesCEF was up.