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    • Avatar of johnmoffat says

      The index numbers for 2007 and 2008 are telling you that for every $108.2 that was spent in 2007 we would have to spend $119 in 2008.

      So…….if we actually spent $0.40 in 2007 it would cost in 2008: 119/108.2 x $0.40

      (Another way you can look at it is this. Something that cost 108.2 in 2007 would have gone up by 10.80 in 2008 (119 – 108.2). This is an increase of 10.8/108.2 x 100 = 9.982%.
      So….if something cost $0.40 in 2007, then add on 9.982% and you will get a cost of $0.44 in 2008)

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