The UTCC Center for Economic and Business Forecasting estimates Bangkok's flood losses at up to 11.8bn baht for Sept 25-29, with a base case of about 12.3bn baht nationally (worst case 20.6bn). Flooding has cut spending at malls, shops, restaurants and petrol stations, disrupted worker commutes, and blocked main roads, making deliveries hard to Bang Kapi, Min Buri and Rangsit. Expect slower sales and delivery delays while water stays high; the centre expects it to ease within a week. Estimates exclude property, inventory and farm damage, which will be assessed later, so check stock and insurance claims.