CGT on UK property when % share changes due to death

A UK residential property purchased, in 2012 for £200k, was held as joint tenants by myself, my brother, my sister and my mother (4 people in total). My mother died in 2022 (leaving 3 joint tenants remaining) when the property was worth £350k. In 2024 the property is being sold for 450k. My share of the total buying and selling expenses is £2.5k. The property has not been my main residence. Is my capital gain calculated as follows: My share of capital gain=25%*(350k-200k)+33.33%*(450k-350k) -2.5k expenses= 37.5k+33.33k-2.5k= 68.33k.

Hi,
We cannot comment on any form of calculation/example or scenario, whether fact or fiction.
We can only point you the direction of the guidance, so that you can review the guidance and to allow you to make an informed decision.
Please refer to Capital Gains Tax: what you pay it on, rates and allowances
Thank you.