CGT on Share Consolidations: How to value and declare

Say that in 1990 I bought 250 shares in x.y Company for £4.00 = £1000. Q1: Over the years, various splits and consoladations have reduced the number of shares to 200, but are now valued at £20 each = £4000. So the gain is 4000-1000 = £3000. Is it correct to say (and declare) that this is 3000/200 (£15) on the now number of shares OR 3000/250 (£12) on the initial shares? Q2: Over the years, various splits and consoladations have increased the number of shares to 500, but are now valued at £20 each = £10000. So the gain is 10000-1000 = £9000. Is it correct to say (and declare) that this is 9000/500 (£18) on the now number of shares or 9000/250 (£36) on the initial shares? =============== In other words, the gain to be taxed is the same, but what is the correct value to show in the calculation?

Hi,

Sorry, we can only provide general advice and cannot comment on scenarios in this forum.

Thank you.