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How Do You Find Out What 20% Off Of Something Is?

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karin bernal Profile
karin bernal answered
For me it is easier to think in amounts of 10.  For example, let's say something in the store has a price of $55.00 and has a markdown of 20%.  Here's what I do:  10% of $55.00 equals $5.50 (you move the decimal point over one position to the left).  You can verify this is correct by multiplying $5.50 x 100 = $55.00.  I then double the amount of $5.50 to find the 20% which would be $5.50 + $5.50 = $11.00.
 
20% of $30.00 = (10%=$3.00)  $3.00 + $3.00 = $6.00
 
40% of $30.00 = (10% of $30.00 = $3.00) so 40% = 4 x $3.00=$12.00
Anita Morton Profile
Anita Morton answered
20%=0.20=20/100=1/5
Multiply the regular price by 1/5 or
Divide the regular price by 5 and that gives you the amount off.
Subtract the amount off from the regular price to get the sale price.

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