Math CentralQuandaries & Queries


Subject: integers
Name: bill
Who are you: Other

if the value of xyz company stock drops from $25 per share to $21 per share, what is the percent of the decrease?

Hi Bill,

The stock price dropped from $25 to $21 so it dropped $4. The percentage change is the change (-$4), as a fraction of the starting price ($25), and then expressed as a percentage. The drop as a fraction of the starting price is -4/25. Expressed as a percent this is

-4/25 x 100 = -16%.

Hence there is a -16% change which is a 16% decrease.


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