The standard cost card in Al-Salam Al-Mustaheel Company shows the following information. The produced unit of product is required (A): Half a kilogram of raw materials at a cost of $10 per kg. And 3 hours of direct work at a rate of $4 an hour. During the month of July, the company produced 10,200 units of product (A) and used 5,250 kg of raw materials at a cost of $9.5 per kg. The number of direct working hours was 30,500 hours, with an average wage of $4.5 per hour. The wage rate variance for direct wages is