Final answer:
To correct the errors in the trial balance and calculate the corrected net profit, several journal entries need to be made. The Suspense Account is used to temporarily record the errors. After adjusting the errors, the corrected net profit for the year is calculated. An error of principle refers to a mistake made in applying the accounting principles or rules.
Step-by-step explanation:
(a) Journal entries to correct the above errors:
- Cash Account – Debit: £3,000
T. Maunder's Account – Credit: £3,000 - Purchases Account – Debit: £2,400
JD Supplies' Account – Credit: £2,400 - Motor Vehicles Account – Debit: £760
Cash Account – Credit: £760 - Discounts Allowed Account – Debit: £850
Discounts Received Account – Credit: £850 - Cash Account – Debit: £6,300
R. Grant's Account – Credit: £6,300 - Sales Account – Credit: £800
Income Statement Account – Debit: £800
(b) The Suspense Account:
The Suspense Account is used to temporarily record the errors and discrepancies in the trial balance. In this case, the Suspense Account would have entries for the £4,200 difference between debits and credits. Once the errors are corrected, the Suspense Account balance will be cleared.
(c) Statement showing the corrected net profit for the year ended 30 April 2007:
To calculate the corrected net profit, we need to adjust the errors identified:
- Add the correct amount for J. Mander's payment (£3,000) to the debtor's account. This increases net profit by £3,000.
- Add the missing double entry for the purchase of goods from JD Supplies (£2,400). This reduces net profit by £2,400.
- Reverse the incorrect entry for motor vehicle repairs (£760) and record it as a payment in the correct account. This reduces net profit by £760.
- Correct the entry for discounts allowed (£850) and record it in the correct account. This reduces net profit by £850.
- Adjust the entry for the cheque received from R. Grant (£3,600) to the correct amount (£6,300). This increases net profit by £2,700.
- Add the undercast of sales (£800) to the sales account. This reduces net profit by £800.
After making these adjustments, the corrected net profit for the year ended 30 April 2007 would be £19,750.
(d) An error of principle:
An error of principle is a mistake made in applying the accounting principles or rules. It occurs when a transaction is recorded in a way that doesn't comply with the established principles and rules of accounting. For example, if a company records an expenditure as an asset instead of an expense, it would be considered an error of principle.