On Friday, Remy paid Sally’s Woodworking LLC a total of $20,700 for 150 pieces of furniture. Later that evening, the company’s accountant discovered that a new intern in the sales department had overcharged Remy. If the cost of a piece of furniture is $134, how much money will Sally’s Woodworking LLC reimburse Remy?
The total cost of all the pieces of furniture should be 134 * 150 = 
<gadget id="calculator">134*150</gadget>
<output>20_100</output>
20100 dollars.
Sally's Woodworking LLC will reimburse Remy the difference between the total cost and the amount he paid, which is 20700 - 20100 = 
<gadget id="calculator">20700-20100</gadget>
<output>600</output>
600 dollars.

<result>600</result>