CGT calculation on GOV.UK

Jitter

I have an investment portfolio that made a capital gain of £6142 in 24/25, I had losses totalling £10350 in the two previous years, all reported on my SA return.

I have completed (3 weeks ago) my SA for 24/25 and carried forward losses from the previous years to set against the £3142 that would have otherwise been liable to CGT.

On the GOV.UK website I can see a detailed breakdown of how the tax on my income, pension, dividends and and interest has been calculated, the last 2 lines of which are income tax overpaid £30.13, then plus Capital Gains Tax - which has no figure beside it.

Does this mean HMRC have calculated no CGT is due, which I believe is correct - but I cant find a breakdown of the calculation, can anyone advise if there is anywhere I can find this?

I am keeping a spreadsheet so I know what losses I am carrying forward (a requirement on the SA return), but it would be reassuring if I could check that these are in agreement with HMRC.