Oct 5 (Reuters) – Business conditions in Egypt's non-oil private sector declined slightly in September as new orders fell at the fastest pace in five months, a survey showed on Sunday. S&P Global's Egypt Purchasing Managers' Index (PMI) slipped to 48.8 last month from 49.2 in August, marking the lowest reading in three months. Input price inflation eased to its lowest rate since March, aided by a stronger Egyptian pound against the U.S. dollar. Despite the decline in purchasing activity, inventory levels rose for the first time since May, as some firms opted to keep more inputs in reserve. Business confidence dipped, with output expectations for the coming year at one of the lowest levels in the survey's history.