You have to do *SOME* work first before you ask for help with homework.

We don't write it for you. We only help you over the rough spots.

If all you are asking is "How do I create a selection choice?" then the answer would *probably* be to either use a drop down list <select> or a set of radio buttons. As a general rule, I prefer radio buttons when there are only 2 to 4 choices and a <select> when there are more than that. But it's really a matter of esthetics.

Clearly I would use radio buttons to select the discount rate.