current attempt in progress sandhill company begins the month of march with $20,400 of work in process inventory from job 324. information from job cost sheets shows the following additional costs assigned during march, april, and may of 2022: manufacturing costs assigned job no. march april may 324 $31,200 325 24,000 $33,600 $18,000 326 49,200 13,200 327 19,200 46.800 328 40.800 61.200 job 324 was completed in march. jobs 325 and 327 were completed in may, and job 326 was completed in april. jobs are sold during the month after completion. total revenue for jobs sold during the 3-month period is $174.000. calculate the balance of the work in process inventory accounts at the end of may.