The concentration ratio provides a measure of the extent to which an industry Question 63 options: produces a useful product. is dominated by a small number of firms. is earning economic profits. is earning accounting profits.

"The concentration ratio provides a measure of the extent to which an industry is dominated by a small number of firms.

Explanation:

Let us assume that there are 20 firms in the paper milling industry with a total sales of $40 billion per annum.  From these 20 firms, 4 firms have annual sales totalling $25 billion.  With these assumptions made, we can calculate the concentration ratio as the "Annual sales of the 4 firms divided by the Industry's annual sales, and then multiplied by 100."  Our calculation produces a concentration ratio of 62.5%.  This concentration ratio shows the dominance of these four firms in the paper milling industry.  The remaining 16 firms control 37.5% (100% - 62.5%) of the annual sales in the industry.  This examples explains what a concentration ratio is and how the calculation can be carried out.

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hi : ) i found this so i hope this !

"we first find value of tax in dollars.

the difference between the two prices   is: 23. 54 - 22 = 1.54

therefore the sales tax in dollars is 1.54

the tax % will be   (amount of tax / original cost price ) × 100

(1.54 / 22) × 100  → (0.07) × 100 =   7

so the tax rate is 7%

we can double check the answer.

7 % of 22   → (7/100) × 22 → 0.07 × 22 = 1.54

22 + 1.54 = 23.54"