<PRE><B>Question 1068069</B>
last week he made 10,000 in sales.


this week he made 8% more.


8% of 10,000 is equal to .08 * 10,000 which is equal to 8 * 100 = 800 dollars.


the bump up is an additional 800 dollars in sales.


800 / 10,000 = 8/100 = .08 = 8%.


alternatively you could solve as follows:


10,000 + .08 * 10,000 = x
x represents the new amount of sales.
factor out the 10,000 and you get 10,000 * (1 + .08) = x
simplify to get 1.08 * 10,000 = x
solve for x to get x = 10,800
10,800 minus 10,000 equals an additional 800 dollar in sales.


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