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Last Year the price per share of Company A's stock on March 31 was 25

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Last Year the price per share of Company A's stock on March 31 was 25 [#permalink]

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Last Year the price per share of Company A's stock on March 31 was 25 percent higher than its price per share on March 1. By April 30 the stock's price per share was 20 percent lower than the price per share on March 1. What was the percent decrease in price per share of the stock from March 31 to April 30?

A. 5%
B. 25%
C. 36%
D. 45%
E. 56%

I am getting a wrong answer every time I try.
[Reveal] Spoiler: OA

Last edited by Bunuel on 02 Dec 2016, 00:24, edited 1 time in total.
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Re: Last Year the price per share of Company A's stock on March 31 was 25 [#permalink]

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riteshpatnaik wrote:
Last Year the price per share of Company A's stock on March 31 was 25 percent higher than its price per share on March 1. By April 30 the stock's price per share was 20 percent lower than the price per share on March 1. What was the percent decrease in price per share of the stock from March 31 to April 30?

A. 5%
B. 25%
C. 36%
D. 45%
E. 56%

I am getting a wrong answer every time I try.


March 1 = 100;
March 31 = 125 (25 percent higher than its price per share on March 1);
April 30 = 80 (20 percent lower than the price per share on March 1).

What was the percent decrease in price per share of the stock from March 31 to April 30 --> (125 - 80)/125 = 45/125 = 36/100.

Answer: C.
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Re: Last Year the price per share of Company A's stock on March 31 was 25 [#permalink]

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New post 08 Dec 2017, 10:33
riteshpatnaik wrote:
Last Year the price per share of Company A's stock on March 31 was 25 percent higher than its price per share on March 1. By April 30 the stock's price per share was 20 percent lower than the price per share on March 1. What was the percent decrease in price per share of the stock from March 31 to April 30?

A. 5%
B. 25%
C. 36%
D. 45%
E. 56%


We are given that last year the price per share of Company A's stock on March 31 was 25 percent higher than its price per share on March 1, and that by April 30 the stock's price per share was 20 percent lower than the price per share on March 1.

If we let p = the price per share of Company A’s stock on March 1, we can create the following equations:

price on March 31st = 1.25p
price on April 30th = 0.8p

We need to determine the percent decrease in price per share of the stock from March 31st to April 30th. We can use the percent change equation:

Percent change = (new - old)/old x 100

Percent decrease = [(0.8p - 1.25p)/(1.25p)] x 100

Percent decrease = [(80p - 125p)/(125p)] x 100

Percent decrease = [(-45p)/(125p)] x 100

Percent decrease = (-9/25) x 100 = -9 x 4 = -36

Thus, there was a 36 percent decrease in price per share.

Answer: C
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Re: Last Year the price per share of Company A's stock on March 31 was 25   [#permalink] 08 Dec 2017, 10:33
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