( a ) for the fiscal year ended june 30 , 2019 , the company recognized approximately $ 493 million of revenue which was included in the opening deferred revenue balance . contract assets were immaterial for disclosure as of june 30 , 2019 . practical expedients the company typically expenses sales commissions incurred to obtain a customer contract as those amounts are incurred as the amortization period is 12 months or less . these costs are recorded within selling , general and administrative in the statements of operations . the company also applies the practical expedient for significant financing components when the transfer of the good or service is paid within 12 months or less , or the receipt of consideration is received within 12 months or less of the transfer of the good or service . other revenue disclosures during the fiscal year ended june 30 , 2019 , the company recognized approximately $ 316 million in revenues related to performance obligations that were satisfied or partially satisfied in a prior reporting period . the remaining transaction price related to unsatisfied performance obligations as of june 30 , 2019 was approximately $ 354 million , of which approximately $ 182 million is expected to be recognized during fiscal 2020 , approximately $ 129 million is expected to be recognized in fiscal 2021 , $ 35 million is expected to be recognized in fiscal 2022 , $ 5 million is expected to be recognized in fiscal 2023 , with the remainder to be recognized thereafter . these amounts do not include ( i ) contracts with an expected duration of one year or less , ( ii ) contracts for which variable consideration is determined based on the customer 2019s subsequent sale or usage and ( iii ) variable consideration allocated to performance obligations accounted for under the series guidance that meets the allocation objective under asc 606 . note 4 . acquisitions , disposals and other transactions fiscal 2019 opcity in october 2018 , the company acquired opcity , a market-leading real estate technology platform that matches qualified home buyers and sellers with real estate professionals in real time . the total transaction value was approximately $ 210 million , consisting of approximately $ 182 million in cash , net of $ 7 million of cash .
news corporation notes to the consolidated financial statements contract liabilities and assets the company 2019s deferred revenue balance primarily relates to amounts received from customers for subscriptions paid in advance of the services being provided . the following table presents changes in the deferred revenue balance for the fiscal year ended june 30 , 2019 : for the fiscal year ended june 30 , 2019 ( in millions ) .
what was the difference in millions of deferral of revenue and recognition of deferred revenue for the fiscal year ended june 30 , 2019?
the deferral of revenue of for the fiscal year ended june 30 2019 ( in millions ) is 3008 ; the recognition of deferred revenue ( a ) of for the fiscal year ended june 30 2019 ( in millions ) is -3084 ( 3084 ) ;
for the fiscal year ended june 30 2019 ( in millions )
balance as of july 1 2018 $ 510
deferral of revenue 3008
recognition of deferred revenue ( a ) -3084 ( 3084 )
other -6 ( 6 )
balance as of june 30 2019 $ 428