DEF Ltd manufactures a product with the following standard costs: Direct materials $110 per unit, Direct labor $90 per unit, and Factory overhead (based on direct labor hours, 18 hours per unit) $70 per unit. During March, the company produced 16,000 units. Actual costs were: Direct materials $1,600,000, Direct labor $1,440,000, and Factory overhead $1,120,000. Calculate the total variance and break it down into material, labor, and overhead variances.