Advanced Micro Devices develops computing products. Assume one of its processors, Ryzen 9 , has a standard labor time of 0.20 hour and a standard labor rate of $20 per hour. During July, the following activities pertaining to direct labor for Ryzen 9 were recorded: Calculate the direct labor efficiency variance. Note: If the variance is Unfavorable, type a minus sign "-" in front of your answer. For example: if variance is $1,000 Unfavorable, type "-1,000" (no spaces). Do not include any decimal places; do not include the $ sign