The price of an item is discounted 10 percent on day 1 of a sale. On day 2, the item is discounted another 10 percent, and on day 3, it is discounted an additional 10 percent. The price of the item on day 3 is what percentage of the sale price on day 1? Choose the most appropriate option:
A) 28% B) 40% C) 64.8% D) 70% E) 81%
original price = 100   day 1 discount = 10%,price = 100-10= 
<gadget id="calculator">100-10</gadget>
<output>90</output>
90   day 2 discount= 10%,price = 90-9= 
<gadget id="calculator">90-9</gadget>
<output>81</output>
81   day 3 discount= 10%,price = 81-8.1= 
<gadget id="calculator">81-8.1</gadget>
<output>72.9</output>
72.9   which is 72.9/90 *100 of the sale price on day 1= ~81%   Answer 81%
<result>E</result>
The price of an item is discounted 10 percent on day 1 of a sale. On day 2, the item is discounted another 10 percent, and on day 3, it is discounted an additional 10 percent. The price of the item on day 3 is what percentage of the sale price on day 1?