What is the percent of change in the cost of a DVD set that originally sold for $49.99 and is now on sale for $24.99? Is this a percent of markdown or markup?

50.0%

Step-by-step explanation:

% change in cost of the dvd will be the difference between the two costs divided by the initial or original cost and the result multiplied by 100%

That's

$49.99 - $24.99 = $25

% change =

$25/$49.99 x 100%

0.500 x 100%

50.0%

The percent is markdown because the original cost of the dvd was reduced by 50%

I believe this is a Mark down because 49.99 (starting price) >24.99 (ending price)