For example, expect the cost of a new roof with tile to be more than wood shingles. However, heavier and longer-lasting shingles of a low cost material can cost as much or more than the low-end of a more expensive roofing material, such as tile.he cost of a new roof with asphalt is among the lowest of any popular material and they carry a moderate lifespan. Advantages: 1  Average 20+ year lifespan. 2  Low cost.
Characteristics of Security Indexes. 1. A price weighted series is the average of the stocks' prices in the series. It is calculated by adding together each stock price and dividing the total by the number of stocks in the series.
Loading the player... An index is a statistical means of calculating a change in an economy or market. The index is typically a weighted average representative sample of the market. For instance, the consumer price index is a basket of goods and services that is used to represent what a typical consumer will purchase during a given time period. Changes in the price of this basket of goods lets economist know if prices increased or decreased during that time period.