Answer:
80%
Step-by-step explanation:
Cost of materials for a bar of soap = $ 2.50
Selling price for a bar of soap = $ 4.50
Markup percent = [tex]\frac{selling\ price\ per\ unit - cost\ per\ unit}{cost\ per\ unit} \times 100[/tex]
Markup percent = [tex]\frac{4.50-2.50}{2.50} \times 100[/tex]
= [tex]\frac{2}{2.50} \times 100[/tex]
= [tex]\frac{200}{250} \times 100[/tex]
= [tex]20 \times 4[/tex]
= 80%