de.linsin.example.fit.DomainRulesFit
item price	item name	on season sale	quantity	discount	total()
8.79	Jim Beam	FALSE	2	true	16.7
6.79	Wodka Gorbatschow	TRUE	2	false	11.22 expected 12.22 actual
3.5	Nivea	true	1	false	3.15
3.5	Nivea	true	1	false	3.15