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.
Referring to an item as Antique usually means that it meets a certain age requirement. According to the US customs office, anything 100 years old or older is officially antique. But the true definition of Antique involves the concept of times past. If an item is considered to be from a different era or time period in human society, and is also fairly rare, then it may gain antique status without being 100 years old. Ebay makes a distinction for antiques at 1930 and before, which is not quite 100 years.