Smith plc commenced two projects on 1 January 2023. The following details relate to them as at 31 December 2023. Cost to date Progress billings invoiced Progress billings received Estimated future costs Estimated final contract price Project 1 Project 2 ₤'000 ₤'000 380 110 290 70 210 55 120 320 650 430 Smith plc uses the percentage completion method based on costs (cost to date/total costs) to account for construction contracts. The policy of Smith plc is that project outcomes can only be reliably measured when a project is at least 35% complete. Required a. Illustrate the five-step method under the IFRS 15 Revenue from Contracts with Customers.

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