The price of a laptop is $1000. If you get a 20% discount, how much do you have to pay?
You will get a discount of 20/100 x $1000 = $
<gadget id="calculator">20/100*1000</gadget>
<output>200</output>
200.
Therefore, you will have to pay $1000 - $200 = $
<gadget id="calculator">1000-200</gadget>
<output>800</output>
800.

<result>800</result>