pre_text: Revenue The following table presents the breakdown of revenue between product and service (in millions, except percentages): (1) Total revenue, product revenue and service revenue not including the SPVSS business in the prior year increased 7%, 8% and 3%, respectively.
table: Years Ended 2019 vs. 2018
table: July 27, 2019 (1) July 28, 2018 July 29, 2017 Variance in Dollars Variance in Percent
table: Revenue:
table: Product $39,005 $36,709 $35,705 $2,296 6%
table: Percentage of revenue 75.1% 74.4% 74.4%
table: Service 12,899 12,621 12,300 278 2%
table: Percentage of revenue 24.9% 25.6% 25.6%
table: Total $51,904 $49,330 $48,005 $2,574 5%
question: Analyse this data from a financial earnings document. What was the change in product revenue between 2018 and 2019?