In January 2014 the retail price index was 252.6
in January 2016 the retail price index was 258.8
applying those indices to your payment, your payment should have increased to 308.15
The difficulty is that it is going to cost you more to enforce this increase than the actual amount of the increase.
Can I clarify anything else for you?
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Here are the indices for you to calculate any month to month combination.
Divide 300.77 by the month and year figure you are starting from and multiply by the month and year figure that you want to know
In April 2014, the Retail Price Index was 255.7
In January 2015, it had dropped to 255.4
In January 2016, it had gone up again to 258.8
So the figure in January 2015 would be less than £300.77 by a tiny amount of pence
In January 2016, I have already given you the figure £308 .15
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