A shirt goes on sale for 80% of its original price. One week later, the sale price is marked down 10%. The final price is what percent of the original price?  Choose the correct option:
A) 72%
B) 70%
C) 52%
D) 50%
E) 28%
Just assume original price is 100.   Sale price = 80   Then it is marked down by 10% = 80-8= 
<gadget id="calculator">80-8</gadget>
<output>72</output>
72.   Hence it is 72% of the original price. Hence answer is 72%
<result>A</result>
A shirt goes on sale for 80% of its original price. One week later, the sale price is marked down 10%. The final price is what percent of the original price?