Builder products, inc., uses the weighted-average method in its process costing system. it manufactures a caulking compound that goes through three processing stages prior to completion. information on work in the first department, cooking, is given below for may: production data: pounds in process may 1: materials 100% complete: conversion 90% complete 74,000 pounds started into production during may 390,000 pounds completed and transferred out ? pounds in process, may 31: materials 70% complete: conversion 30% complete 34,000 cost data: work in process inventory, may 1: materials cost exist 98, 800 conversion cost exist 44,000 cost added during may: materials cost exist513, 830 conversion cost exist242, 130 required: 1. compute the equivalent units of production for materials and conversion for may 2. compute the cost per equivalent unit for materials and conversion for may. 3. compute the cost of ending work in process inventory for materials, conversion, and in total for may. 4. compute the cost of units transferred out to the next department for materials, conversion, and in total for may. 5. prepare a cost reconciliation report for may.