Table:
Years Ended	July 27, 2019	July 28, 2018	July 29, 2017

Revenue:

Infrastructure Platforms .	$30,191	$28,322	$27,817

Applications .	5,803	5,036	4,568

Security	2,730	2,352	2,152

Other Products .	281	999	1,168

Total Product .	39,005	36,709	35,705

Services	12,899	12,621	12,300

Total (1)	$51,904	$49,330	$48,005

Answer the following question drawing on both the table and the accompanying text, feel free to explain how you reached the answer, then present the result in JSON format {"answer": ["ANSWER"], "scale": "SCALE"} (leave scale empty if none).

Background:
(b) Revenue for Groups of Similar Products and Services
We design, manufacture, and sell IP-based networking and other products related to the communications and IT industry and provide services associated with these products and their use.
The following table presents revenue for groups of similar products and services (in millions):
(1) Includes SPVSS business revenue of $168 million and $903 million for fiscal 2019 and 2018, respectively.

Question: What was the percentage change in total product revenue between 2018 and 2019?

((39,005-36,709)/36,709) * 100, therefore {"answer": "6.25", "scale": "percent"}