Table:
Year ended December 31,

2019 (1)	2018	2017

Software services	$40.2	$35.9	$32.8

Data and analytics services	19.3	21.7	24.0

Total related party revenues	$59.5	$57.6	$56.8

Answer the following question taking into account the tabular data along with the context 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).

Context:
Consolidated Statements of Earnings and Comprehensive Earnings
A detail of related party items included in Revenues is as follows (in millions):
(1) Transactions with FNF are summarized through November 30, 2019, the date after which FNF is no longer considered a related party.

Question: What was the percentage change in total related party revenues between 2018 and 2019?

((59.5-57.6)/57.6) * 100, therefore {"answer": "3.3", "scale": "percent"}