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.
Generally, a car needs to be 25-30 years or older to be considered as an antique or collectible car. Since your Solara was made in 1999, it's still considered as a modern car. For a car to be considered an antique, it would just have to be old. On the other hand, for a car to be labeled a classic, it needs to have some kind of demand and value on the collector's market. The definitions for antiques differ from state to state.