Answer:
$84
Explanation:
Calculation to Find the markup from the cost to sale price
Using this formula
Cost to sale price markup=[Selling price-(Marked down percentage *Selling price)]- Sale price marked up
Let plug in the formula
Cost to sale price markup=[$455-(20%*$455)]-$280
Cost to sale price markup=($455-$91)-$280
Cost to sale price markup=$364-$280
Cost to sale price markup=$84
Therefore the markup from the cost to sale price will be $84