Table:
As of December 31,

2019	2018

Balance at beginning of the year	32,750,727	32,938,466

Repurchases	(420,770)	(342,100)

Restricted stock unit issuances	142,449	154,361

Balance at end of period	32,472,406	32,750,727

Answer the following question taking into account the given table and 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:
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (in thousands, except for share and per share data)
NOTE 15 — Shareholders' Equity
A roll forward of common shares outstanding is as follows:

Question: What was the percentage change in the Restricted stock unit issuances between 2018 and 2019?

((142,449-154,361)/154,361) * 100, therefore {"answer": "-7.72", "scale": "percent"}