Question

A recliner that costs $150 was marked up by 275%

Answer 1

275% =2.75
therefore, the cost of the recliner multiplied by 2.75 equals the new cost of the recliner. 
so, $150*2.75=$412.50

Answer 2

Well, 
 $150 x 2.75 = $412.5 because 275%  is 2.75