Entitlement to pension credit doesn't automatically give you any assistance with your council tax.
If you receive savings credit only, how much you will receive is assessed on what the pension service have awarded you, however if you have savings/investments over �16000 then you won�t qualify.
If you receive pension credit guaranteed because of low income, then you will get the maximum in council tax benefit.
Be aware that deductions can occur if you have other adults in the property
I suggest you contact up your local benefit section and ask them.