homework key:  describing changes

  1.	$504 is $104 more than $400.
	$504 is 26% more than $400.
	$504 is 126% of $400.
	$504 is 1.26 times $400.

  2.	$634.96 is $234.96 more than $400.
	$634.96 is 58.74% more than $400.
	$634.96 is 158.74% of $400.
	$634.96 is 1.5874 times $400.

  3.	$800 is $400 more than $400.
	$800 is 100% more than $400.
	$800 is 200% of $400.
	$800 is 2.00 times $400.

  4.	$403 is $3 more than $400.
	$403 is 0.75% more than $400.
	$403 is 100.75% of $400.
	$403 is 1.0075 times $400.

  5.	$7000 is $6600 more than $400.
	$7000 is 1650% more than $400.
	$7000 is 1750% of $400.
	$7000 is 17.50 times $400.

  6.	$252 is $148 less than $400.
	$252 is 37% less than $400.
	$252 is 63% of $400.
	$252 is 0.63 times $400.

  7.	$317.48 is $82.52 less than $400.
	$317.48 is 20.63% less than $400.
	$317.48 is 79.37% of $400.
	$317.48 is 0.7937 times $400.

  8.	$200 is $200 less than $400.
	$200 is 50% less than $400.
	$200 is 50% of $400.
	$200 is 0.50 times $400.

  9.	$12.56 is $387.44 less than $400.
	$12.56 is 96.86% less than $400.
	$12.56 is 3.14% of $400.
	$12.56 is 0.0314 times $400.

 10.	$0.68 is $399.32 less than $400.
	$0.68 is 99.83% less than $400.
	$0.68 is 0.17% of $400.
	$0.68 is 0.0017 times $400.