“…The construction sector has a great impact on the Gross Domestic Product (GDP), it represents about 16.5% of the total Egyptian GDP. However, after the Egyptian revolution in 2011 and the floating exchange rate for the Egyptian pound in November 2016 followed by a high inflation rate, many sectors suffered due to the unstable economic situation accompanied by the political risks in Egypt (Idrees, El Seddawy, & EL Moaaz, 2019) (Khedr, Idrees, & El Seddawy, 2016). With all these factors into consideration, an accurate estimate for the project cost is needed by building construction companies in Egypt, and controlling project costs has become more important and with greater impact than before (Idrees, Alsheref, & ElSeddawy, 2019).…”