Arithmetic Reasoning

If a car costs $10,000 and is on sale for $8,000, what is the percent discount?

As an ASVAB tutor, I teach my students to solve a variety of percentage questions.  One important percentage question is percent increase or decrease.  To solve today’s problem, it is necessary to figure out the percent change in this question.  Percentage is one of the 15 subtopics that I cover in Arithmetic Reasoning.  Do you know how to solve this problem?  The explanation and answer will be presented tomorrow.