Consequences Of The Considerations
When there are two (or more) inputs, it is necessary to postpone the computation until all inputs are available … so to be notified when the input has been fully specified, use a button to command “calculate price now”
The processing can be performed when the calcPrice button is clicked, so plan to put “processing” in the Sub calcPrice_Click()
There are two user inputs, size and shots,
and they can be given in either order