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xxTIMURxx [149]
3 years ago
9

At the beginning of the day stock XYZ opened at 3.15. At the end of the day it closed at 2.87. What is the rate of change of sto

ck XYZ.
A) 4.1%
B) -8.9%
C) 9.8%
D) -0.09%
Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
4 0

The correct answer is B) -8.9%

The rate of change for any problem is always determined using the following equation.

\frac{NEW - OLD}{OLD}  * 100

In this case, the old value is 3.15 and the new value is 2.87. SO we use these in the equation to get the answer.

\frac{NEW - OLD}{OLD}  * 100

\frac{2.87 - 3.15}{3.15}  * 100

\frac{-.28}{3.15}  * 100

-.088889 * 100

-8.9%

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