Database schema:

CREATE TABLE divisions (
	division TEXT NOT NULL -- example: ['D1', 'B1'],
	name TEXT -- example: ['Division 1A', 'Bundesliga'],
	country TEXT -- example: ['Deutschland', 'Belgium'],
	PRIMARY KEY (division)
)


CREATE TABLE matchs (
	"Div" TEXT -- example: ['D1', 'B1'],
	"Date" DATE -- example: ['2020-08-08', '2020-08-09'],
	"HomeTeam" TEXT -- example: ['Antwerp', 'Club Brugge'],
	"AwayTeam" TEXT -- example: ['Mouscron', 'Charleroi'],
	"FTHG" INTEGER -- example: ['0', '1'],
	"FTAG" INTEGER -- example: ['0', '1'],
	"FTR" TEXT -- example: ['A', 'D'],
	season INTEGER -- example: ['2020', '2021'],
	CONSTRAINT fk_matchs_divisions FOREIGN KEY("Div") REFERENCES divisions (division)
)

Question: What percentage of all tied games did the Sassuolo team play in?
Evidence: tied games refer FTR = 'D'; DIVIDE(COUNT(Div where FTR = 'D', HomeTeam = 'Sassuolo' or AwayTeam = 'Sassuolo'), COUNT(Div where HomeTeam = 'Sassuolo' or AwayTeam = 'Sassuolo')) as percentage;

SQL:
SELECT CAST(SUM(CASE WHEN HomeTeam = 'Sassuolo' OR AwayTeam = 'Sassuolo' THEN 1 ELSE 0 END) AS REAL) * 100 / COUNT(FTR) FROM matchs WHERE FTR = 'D'