Complete the following input/output report. What are the planned and actual backlogs at the end of Period 5? Problem 3 (5 marks) Period 1 2 3 4 Total Planned Input 78 78 78 78 78 390 Actual Input 80 84 74 82 80 400 Cumulative Variance Period 1 Planned Output 80 Actual Output 83 288 80 382 4 Total 80 80 80 400 78 80 84 407 Cumulative Variance Period Planned Backlog Actual Backlog 445 1 2 3 4 5 Total X