Extracted from HKIS's seminar 2005
http://www.hkis.org.hk/hkis/html_jo/upload/HomeHeadline/hhlnk174_0.ppt
A. Preliminary cost estimate (CFA x unit rate $/CFA)
B. Elemental cost estimate (Sum of elemental quantity x unit rate)
C. Cost plan (Sum of approximate quantity x unit rate)
D. Pre-tender cost estimate (bases on B.Q. & current price e.g. recent returned tender, quotation etc.)
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