At the beginning of the day the stock market goes up 50 1/2 points and stays at this level for most of the day. At the end of the day the stock market goes down 90 1/4
points from the at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the day?

Step-by-step explanation:

To calculate the change of a stock price

Given that the

old price= 50 1/2

new price= 90 1/4

We simply or basically subtract the new price from the old price and divivde the result by the old price

mathematically we have

change= (new price - old price)/old price

let us convert from mixed fraction to proper fraction

old price= 50 1/2= 101/2

new price= 90 1/4= 361/4

change= (361/4- 101/2)/101/2

change= (361-202/4)/101/2

change=159/4/101/2

change= (159/4)*(2/101)

change= 159/202

change= 0.787

change in percent = 78.7%

step-by-step explanation:

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