This is what i do not fully understand, for cpf life basic, for your case, 7.7% deduct till you reach certain age? then the rest of the balance is for ?
How about standard plan ?
Basic means a small portion of your RA is taken and used as CPF Life premium. Rest is kept in you RA. So your money is divided into two parts.
Payout first comes from your RA. While this is happening, both your RA and CPF life are earning interest. This interest is kept in the part where they are earned. This means that interest earned in your RA will goto your beneficiaries, whereas interest earn by CPF life goes to common pool and will not go to your beneficiaries.
When your RA is finally finished, payout will then start from your CPF Life part. This payout will be less than the payout from RA. Don't ask me why, I don't know how the maths work out. This payout will continue until end of life.
Hope this clear some doubts.