Capital gains tax on remitted amount

I am an additional rate tax payer who is filing as non-domicile on remittance basis for the tax year. I sold stocks held in a US brokerage account with capital gains for the transaction amounting to 10,000 GBP, for which I paid 15% (1500 GBP) capital gains tax in the US. If I remitted the remaining 8500 GBP to the UK, how much tax should I pay for the remitted amount in the transaction.

Hi,
The lower rate of capital gains is 10% and the upper rate 20%.  
To claim the remittance basis will mean that you lose the annual exempt allowance and pay all gains at 20%.
Thank you.