John decides to get a new apartment with a roommate.  His former rent was $2 per square foot for a 750 square foot apartment.  His new apartment cost $2800 per month, which he splits evenly with the roommate.  How much money does he save a year?
His old apartment cost 750*$2=$
<gadget id="calculator">750*2</gadget>
<output>1_500</output>
1500 a month.
His new apartment cost $2800/2=$
<gadget id="calculator">2800/2</gadget>
<output>1_400</output>
1400 a month.
So he saves $1500-$1400=$
<gadget id="calculator">1500-1400</gadget>
<output>100</output>
100 a month.
That means he saves $100*12=$
<gadget id="calculator">100*12</gadget>
<output>1_200</output>
1200 a year.

<result>1_200</result>