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CPI increase calcuation

CPI Increase Calculation (HTML version)
(September 2009 CPI figure – September 2008 CPI figure) ÷ September 2008 CPI figure
 × 100
= CPI change (September 2008 to September 2009)
(168.6 – 166.5) ÷ 166.5
 × 100
= 1.2612%
 
= 1.3% (when rounded to the nearest tenth of one per cent)

Back to news article 'Consumer Price Index (CPI) Adjustment to Pensions'.