Engineering Economy 7th Edition by Leland Blank ,Anthony Tarquin

Exercise 32

Using 1913 as the base year with a value of 100, the ENR construction cost index (CCI) for August 2009 was 8563.35. For August 2010, the CCI value was 8837.38.
a) What was the inflation rate for construction for that 1-year period b) What will be the CCI value in August 2013, provided the inflation rate remains the same as it was in the 2009-2010 period