Part of a company's draft statement of cash flows is shown below:
$!000
Net profit before tax 8,640
Depreciation charges (2,160)
Proceeds of sale of non-current assets 360
Increase in inventory (330)
Increase in accounts payable 440
The following criticisms of the above extract have been made:
1 Depreciation charges should have been added, not deducted.
2 Increase in inventory should have been added, not deducted.
3 Increase in accounts payable should have been deducted, not added.
4 Proceeds of sale of non-current assets should not appear in this part of the statement of cash flows.
Which of these criticisms are valid?