The statements of financial position of Parkway plc for 20X7 and 20X8 are given below, together with the income statement for the year ended 30 June 20X8.

Statement of financial position

20X8

20X7

£000

£000

£000

£000

£000

£000

Non-current assets

Cost

Depn

NBV

Cost

Depn

NBV

Freehold land

60000

60000

60000

60000

Buildings

40000

8000

32000

40000

7200

32800

Plant and machiner y

30000

16000

14000

30000

10000

20000

Vehicles

40000

20000

20000

40000

12000

28000

170000

44000

126000

170000

29200

140800

Cur rent assets

Inventor y

80000

70000

Trade receivables

60000

40000

Short-term investments

50000

Cash at bank and in hand

5000

5000

195000

115000

Current liabilities

Trade payables

90000

60000

Bank overdraft

50000

45000

Taxation

28000

15000

Dividends

15000

10000

183000

130000

Net current assets

12000

(15000)

138000

125800

Financed by

Ordinary share capital

80,000

80,000

Share premium

10,000

10,000

Retained profits

28,000

15,800

118,000

105,800

Long-term loans

20,000

20,000

138,000

125,800

Statement of comprehensive income of Parkway plc
for the year ended 30 June 20X8

£000

Sales

738,000

Cost of sales

620,000

Gross profit

118,000

Notes

1 The freehold land and buildings were purchased on 1 July 20X0. The company policy is to depreciate buildings over 50 years and to provide no depreciation on land.

2 Depreciation on plant and machiner y and motor vehicles is provided at the rate of 20% per annum on a straight-line basis.

3 Depreciation on buildings and plant and equipment has been included in administration expenses, while that on motor vehicles is included in distribution expenses.

4 The directors of Parkway plc have provided you with the following information relating to price rises:

RPI

Inventor y

Land

Buildings

Plant

Vehicles

1 July 20X0

100

60

70

50

90

120

1 July 20X7

170

140

290

145

135

180

30 June 20X8

190

180

310

175

165

175

Average for year ending 30 June 20X8

180

160

300

163

145

177

Required:

(a) Making and stating any assumptions that are necessary, and giving reasons for those assumptions, calculate the monetary working capital adjustment for Parkway plc.

(b) Critically evaluate the usefulness of the monetary working capital adjustment.