Added Discounts problem.
Declared Variables and defined them for testing purposes.
Commented each line to explain.

Created two result variables for tax and no tax.
used console to display info for corrections.
Corrected equations to display correct results for the given definitions.
Edited discountPercentage definition to display correctly in console output.
Also edited noTax equation to be correct with variable definition change.

Setup Console.log to display instructed information.
Added a necessary space in console output. Changed variable definitions to makes sure functions and equations work correctly.

Script complete.