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# At the opening of a trading day at a certain stock exchange, the price

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Re: At the opening of a trading day at a certain stock exchange, the price [#permalink]
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nalinnair wrote:
At the opening of a trading day at a certain stock exchange, the price per share of stock K was $8. If the price per share of stock K was$9 at the closing of the day, what was the percent increase in the price per share of stock K for that day?

(A) 1.4%
(B) 5.9%
(C) 11.1%
(D) 12.5%
(E) 23.6%

Increase in price = 9-8= $1 Original price=$8

% increase= 1/8*100= 12.5%
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Re: At the opening of a trading day at a certain stock exchange, the price [#permalink]
this is a <600 level question
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Re: At the opening of a trading day at a certain stock exchange, the price [#permalink]
$$\frac{New-Old}{Old}$$=$$\frac{Closing-Opening}{Opening}$$

$$\frac{9-8}{8}$$=$$\frac{1}{8}$$=12.5%

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Re: At the opening of a trading day at a certain stock exchange, the price [#permalink]
Percentage change = (final-initial)/initial*100

100*1/8=12.5%
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Re: At the opening of a trading day at a certain stock exchange, the price [#permalink]
1/8 = 12.5%

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Re: At the opening of a trading day at a certain stock exchange, the price [#permalink]
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Re: At the opening of a trading day at a certain stock exchange, the price [#permalink]
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