All of the transactions of Harding Trading Co. for the year have been journalized and posted. The following information has been gathered for the adjustment process as of December 31, 2018: The Supplies account shows a balance of $1,060. A count of supplies revealed $410 on hand. The $1,200 premium relating to a one–year insurance policy was paid on December 1, 2018. The company’s equipment, which was purchased last year, depreciates at a rate of $1,500 per year. On September 30, 2018, a customer paid $10,500 in advance for services; as of December 31, 2018, services in the amount of $3,150 had been performed for this customer. Employees are paid $2,300 on Fridays for the 5-day workweek, which ends on that Friday. However, December 31, 2018 falls on a Thursday. The company has completed $510 of work for customers; the customers have not yet been billed and the related revenue has not been recorded.