Sept 2016 papers section C, Q31- Deferred tax of Triage Co

Hi ~ tutor

I have a question confused me for few hours, for short question post, please google F7 Sept 2016 exam, My problem is about tax expense computed out of deferred tax, which sitting in Sept 2016 papers section C, Q31- Triage Co

Here are also brief informs of my question

informs extracted from trial balance as follows :

Debit balance of 700 on current tax, and credit balance of 3,200 on deferred tax
( for short post, I just give the relevant items of this question )

(ii) Non-current assets:
The directors decided to revalue the leased property at $66·3m on 1 October 20X5. Triage Co does not make an annual transfer from the revaluation surplus to retained earnings to reflect the realization of the revaluation gain; however, the revaluation will give rise to a deferred tax liability at the company’s tax rate of 20%. The leased property is depreciated on a straight-line basis and plant and equipment at 15% per annum using the reducing balance method.

No depreciation has yet been charged on any non-current assets for the year ended 31 March 20X6

(iv)
A provision of $2·7m is required for current income tax on the profit of the year to 31 March 20X6. The balance on current tax in the trial balance is the under/over provision of tax for the previous year. In addition to the temporary differences relating to the information in note (ii), at 31 March 20X6, the carrying amounts of Triage Co’s net assets are $12m more than their tax base.

The given term above all completed, please calculate the tax charge to profit or loss ??

my calculation as follows

provision on current tax 2700

+ Debit balance of current tax 700
__________________________________
Tax charge 3400

credit balance of deferred tax 3200

– deferred tax arising from
revaluation of Leased property (1560)

– carry amount over tax base( 2400)
____________________________________________________________
additional deferred tax provision required ( 760 )

so finally 3400 + 760 = 4160 is my number figures for tax charge to profit or loss

I give you the correct answer provided by ACCA web

(iii) Deferred tax
Provision required at 31 March 20X6:
Revalued property and other assets (7,800 + 12,000) x 20%) 3,960
Provision at 1 April 20X5 (3,200)
–––––––
Increase in provision 760
Revaluation of land and buildings (7,800 x 20%) (1,560)
–––––––
Balance credited to profit or loss (800)

Income tax expense 2,700 + 700 – 800 = 2600

Could you please tell me what’s wrong with my calculation !!

what’s thinking bias shown in my calculation !!

Thanks