DEF Ltd manufactures a product with the following standard costs: Direct materials $180 per unit, Direct labor $130 per unit, and Factory overhead (based on direct labor hours, 28 hours per unit) $110 per unit. During May, the company produced 28,000 units. Actual costs were: Direct materials $5,000,000, Direct labor $3,640,000, and Factory overhead $3,080,000. Calculate the total variance and break it down into material, labor, and overhead variances.