erm... to be more exact...
Last year's tariff at year-end 31st December 2007 - 21.38 cents/kW
Effective 1st Jan 2008 - 22.62 cents/kW
add increase from 1st April 2008 of 1.26 cents
Effective 1st April 2008 - 23.88 cents/kW
So, the total increase since 31st December 2007 adds up to 11.69%
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