the cost of a dentist headpiece is 560 and the markup is 25 percent of the cost find the markup

Question

the headpiece is $560 and the markup is 25% 

Answer 1

Assuming $560 is the cost...

Cost * % markup = $ markup

$560 * 0.25 = $140

Alternatively, assuming $560 is the sales price...

Step 1: (1 + % markup) * Cost = Sales price
1.25 * Cost = $560
Cost = $448

Step 2: $ markup = Sales price - Cost
$ markup = $560 - $448 = $112