You are planning the audit of Bluechip Ltd, a company with investments in listed securities that you consider to have a low level of inherent risk. What is the most appropriate level of planning materiality for the 30 June 2022 audit given the following balances: (all amounts are in $'000)

Sales: 1350 (2022); 1215 (2021); 1080 (2020)

Profit: 20.5 (2022); 168.1 (2021): -143.5 (2020)

Current assets: 1920 (2022); 1728(2021); 1536 (2020)

a.13.5

b.1.0

c.2.1

d.19.2

Given the following balances, what is the most appropriate level of planning materiality for the 30 June 2022 audit of your client?(all amounts are in $'000)

Sales: 2097 (2022); 1887.3 (2021); 1677.6 (2020)

Profit: 147.1 (2022); 132.39 (2021); 117.68 (2020)

Current assets: 3538 (2022); 3184.2(2021); 2830.4 (2020)

a.17.7

b.35.4

c.21.0

d.14.7