Estimated warranty payable of $ 1,300 at the end of 2017. During 2018​, Roy Electric made sales of $ 140,000 and expects product warranties to cost the company 1 percent of the sales. During 2018​, Roy Electric paid $ 2,300 for warranties. What is Roy Electric​'s Estimated warranty payable at the end of 2018​?
A. $ 2,400
B. $ 1,400