Suppose you bought shares of stock at 75 ($75 per share) yesterday, and today the stock rises to 82.

a) What is the value of the stock today if it was worth $3,000 yesterday?

=3000*(82/75).

=$3280.00

b) What was the value of the stock yesterday if the stock today is $3,000?

=3000*(75/82).

=$2744.00