6. LABAN LANG Company adds materials at the beginning of the process in the AAA Department, which is first two stages of its production cycle. Information concerning the materials used in AAA Department in April is as follows: WIP, April 1 - 12,000 units, Php 6,000 material cost Units started - 100,000 units, Php 51,120 material cost Units completed and transferred to next department - 88,000 units Using the weighted average method, what was the material cost of WIP at April 30