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Suppose there is a simple index of three stocks, stock ABC, stock XYZ, and
stock QRS. Stock ABC opens on day 1 with 5000 shares at $3.25 per share.
Stock XYZ opens on day 1 with 500 shares at $8.25 per share. Stock QRS
opens on day 1 with 10,000 shares at $4.75 per share. The price of stock ABC
on day 8 begins at $2.80. The price of stock XYZ on day 8 begins at $7.50.
Stock QRS opens on day 8 with a price of $4.10 per share. Assume that each
stock has the same number of shares that it opened with on day 1. What is
the rate of change of this simple index over 1 week?
A. -15.5%

B. -13.4%

c. 15.5%

D. 13.4%​

Respuesta :

Answer: -13.4%

Explanation:

Parrain

Based on the change in the market prices over the week, the rate of change of this simple index is B. -13.4%.

What is the rate of change over the week?

First find the total value of the index on day 1:

= (5,000 x 3.25) + (500 x 8.25) + (10,000 x 4.75)

= $67,875

Then find the total value on day 8:

= (5,000 x 2.80) + (500 x 7.50) + (10,000 x 4.10)

= $58,750

Rate of change is:

= (58,750 - 67,875) / 67,875

= -13.4%

Find out more on business indexes at https://brainly.com/question/2880731.

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