The stock price rose by 14%
Percentage is the fraction of a sum expressed as a number out of hundred.
Percentage price increase = (change in price / initial price) x 100
In order to determine the answer, the following information is needed :
New price - Initial price
$57 - $50 = $7
Percentage increase in stock price : ($7 / $50) x 100 = 14%
In order to determine the percentage increase in the stock price, express the increase in price as a fraction of the initial price and multiply by 100
To learn more about percentages, please check: https://brainly.com/question/92258?referrer=searchResults