Question

The cost of making a phone is $152. A store sells the phone for $281.20 select all the the expressions that could be used to find the percentage of markup for the ohone

Answer 1

• 
  `(100 * (281.20 - 152))/(152)`

• 
  `((281.20)/(152)-1 ) * 100`

Explanation:

The above two expressions can be used to find the percentage of mark-up for the phone.

The first expression for instance will give;

`= (100 * (281.20 - 152))/(152)\\\\= (12,920)/(152)\\\\= 85`

= 85%

The second expression will give;

`= ((281.20)/(152)-1 ) * 100\\\\= 0.85 * 100\\\\= 85`

= 85%

Both of them will show that an 85% mark-up has been added to the cost of the phone.