please explain where does this number come from, and show the formula if necessary

On 1 July 2014, Parent Ltd acquired 80% of the issued shares of Sub Ltd paying $5,500,000 in cash. The separate accounting records of Sub Ltd at 1 July 2014 include the following equity balances Issued capital General reserve Retained earnings $4,000,000 $1,000,000 $1,200,000 At the date of acquisition, all assets of Sub Ltd were carried in their accounting records at fair value except for buildings which had an original cost of $800,000 and a carrying amount of $600,000. The building had a fair value of $900,000. The building is being depreciated straight line and at date of acquisition has an expected 10 years remaining useful life. Sub Ltd chose to continue to record the asset under the cost model. The building has not been sold. The tax rate is 30%. The summarised extract from the financial statements of the entities as at 30 June 2017 is as follows: Parent Ltd Sub Ltd Tota Operating profit after tax Retained earnings 1/7/16 Available for appropriation Final dividend paid Retained earnings 30/6/17 Issued capital General reserve Total Equity 1,680,000 1,800,0003,480,000 4,900,000 3,200,000 8,100,000 400,000) 4,500,000 3,200,0007,700,000 7,000,000 4,000,000 11,000,000 2,000,000 2,000,000 4000,000 13,500,000 9,200,000 22,700,000 Required: Prepare the acquisition analysis as at acquisition date (1/7/2014) showing both the Parent's equity interest (PEI) and the non-controlling interest (NCI). Based on the information provided, using the proportionate goodwill method, show all the consolidation journal entries, including all related tax effects and NCI journal entries required upon consolidation as at 30 June 2017