Carla Vista, Inc. estimates the cost of its physical inventory at March 31 for use in an interim financial statement. The rate of markup on cost is 25%. The following account balances are available: Inventory, March 1 $557000 Purchases 437000 Purchase returns 27000 Sales during March 771000 The estimate of the cost of inventory at March 31 would be $223000. $350200. $196000. $377200.