A 750 ml bottle of spirits costs $30.00 and has 16 servings per bottle.  Most restaurants will charge $8.00 for one serving.  How much money does a restaurant make on a bottle of spirits?
There are 16 servings in 1 bottle and they charge $8.00 per serving so that's 16*8 = $
<gadget id="calculator">16*8</gadget>
<output>128</output>
128.00
1 bottle yields $128.00 and they spent $30.00 for the bottle so they make 128-30 = $
<gadget id="calculator">128-30</gadget>
<output>98</output>
98.00 on each bottle.

<result>98</result>