Standard costing- Areas of difficulty

Hi Moffat, Thks a lot for this platform. Kindly help solve this problem- Budgeted sales for product X in January are 5,000 units at a standard selling price of $12 per unit. The standard variable cost of X is $8 per unit. Actual selling price in January is $13 per unit, resulting in a sales price variance of $8,000 favourable. What is the favourable sales volume contribution variance in January?