A company made the following disposals during the year to 31 March 2023:

(a) A factory building was sold for £650,000 on 13 June 2022. This building had cost

£300,000 in August 2000 (RPI 170.5) and was extended in July 2002 (RPI 175.9) at a cost of £50,000.

(b) An office building was sold for £1,100,000 on 15 September 2022 and was then immediately replaced by another office building costing £1,050,000. The building sold in September 2022 had cost £600,000 in February 2003 (RPI 179.3). Rollover relief was claimed on the disposal of this building.

(c) A computer system was given to a charity on 14 July 2022. This computer system had cost £5,000 in September 2016 (RPI 264.9) and had a market value of £500 in July 2022. Capital allowances had been claimed in relation to the computer system.

(d) A motor car was sold for £80,000 on 12 June 2022. The car had cost £100,000 in June 2019. Capital allowances had been claimed.

(e) An item of movable plant and machinery was sold for £30,000 on 16 September 2022. This item had cost £70,000 in January 2015 (RPI 255.4). Capital allowances had been claimed in relation to the item.

(f) 8,000 ordinary shares in Exxak plc were sold for £80,000 on 18 December 2022.

Shares in Exxak plc had been bought as follows:

Date No. of shares Cost RPI

£

22 November 2002 4,000 16,000 178.2 14 December 2006 6,000 30,000 202.7 12 December 2022 3,000 36,000 -

(g) Government securities were sold for £40,000 on 17 October 2022. These securities had cost £45,000 in October 2015 (RPI 259.5).

The RPI for December 2017 was 278.1.

Required:

Compute the chargeable gain or allowable loss arising on each of the above disposals and outline any other corporation tax consequences of each disposal. Also compute the net chargeable gains figure which should be included in the company's taxable total profits for the year to 31 March 2023.