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interest_during_construction calculate interest during construction using a monthly discount factor
interest_during_construction
Compute interest during construction
interest_during_construction(i, duration, capital)
idc
interest rate in percent per year
construction duration in months
first/capital cost
Engineer, U. S. A., & Resources, W. National Economic Development (NED) Procedures Manual- National Development Costs. U.S. Army Corps of Engineers Humphreys Engineer Center Support Activity Institute for Water Resources, DACWC72-90(June)1993.
# Result: idc ($) = 18992.14 interest_during_construction (0.027, 25, 700000)
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