rules of % of whole prolblems
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Question 


Answer 


numbers % fraction
part ________l__________
whole l 


numbers % fraction
change ________l__________
whole l 


% increase
ORIGINAL x( 1 + 100 ) 


% decrease
ORIGINAL x (1 100 ) 


From a fraction to a decimal 
Divide the numerator by the denominator 

From a fraction to a percent 
Divide the numerator by the denominator and move the decimal 2 places to the right. 

From a decimal to a fraction 
Use the place value of the last digit in the decimal as the denominator, and put the decimal's digits in the numerator. 

From a decimal to a percent 
Move the decimal place 2 spaces to the right.


From a percent to fraction 
Use the digits of the percent for the numerator and 100 for the denominator, then simplify. 

From a percent to a decimal 
Move the decimal place 2 spaces to the left. 
