Question

A television that has a regular price at $999 is on sale this week for $799. By what percent did the price of the television decrease? What proportion would you use to solve this problem?

A Difference over Original - 100 over x%
B $799 over $999 = x% over 100
C $200 over $999 = x% over 100
D Difference over Total = x% over 100​

Answer 1

C. $200 over $999 = x% over 100

Explanation:

200/999 = 0.2002002002 about 20%

that's how much it decreases since they have a difference of 200.