Do Programming Exercise $12$ on page $105$ in the text, modified as follows:

"Stock Transaction Program" in case your text is different than mine

Ask for the user's name rather than default to 'Joe'.

Ask for the number of shares of stock rather than default to $2000.$ The same value will be used for both the purchase and the sale.

Ask for the purchase price per share rather than default to $$40\mathrm{.}00$ per share.

Ask for the sale price per share rather than default to $$42\mathrm{.}75$ per share.

Ask for the percentage of commission charged by the broker. The same value will be used for both the purchase and the sale. Example: the whole number $8$ would be entered for $8$ percent, not $\mathrm{.}08$