Efficiency = input / output If expenses are $60 and revenue is $80 (perhaps net of interest revenue/expense) the efficiency ratio is 0.75 or 75% (60/80) â meaning that $0.75 are spent for every dollar earned in revenue.
As mentioned above a true antique is more than 100 years old, but some stores value furniture older than 50 years as antique and fine antique dealers will label items antique if they are more than 150 years old. The best way to find out is get the exact age of the piece.
I think it rather depends on the item. Furniture and small appliances tend to be considered vintage anywhere from 25 to 50 years old and beyond. the term vintage however is highly subjective. Vintage clothing particular couture styles might be less than ten years old. Cars, airplanes and boats generally start edging into the vintage category anywhere from 25 to 50 years of age. In most states a car can be registered with vintage collector plates after it is 25 years old or older.