can u explain me when should the old machine should be replaced for a new one. I think is on year 4 because of the salvage value. But i have doubts

A company is considering replacing a broken inspection machine, which has been used to test the mechanical streng with a newer and more efficient one. The company uses an internal rate of return of 9%. The conditions for the replacement analysis are summarized in the following tables. Fill in the missing bl Old Machine O&M n Repair Value CR(9%) OC(9%) AEC(9%) Salvage Value $5,000 $1,200 $4,000 $2,000 $2.758 $2,000 $4,758 $3,000 $3,500 $2,718 $4,807 $2,000 $5,000 $3,414 $5,253 $1,000 $6,500 $4,089 $5,784 $0 $8,000 $4,742 $6,336 New Machine Salvage Value O&M $6,000 $5,100 $2,000 $4,335 $2,800 $3,685 $3,600 $3,132 $4,400 $2,662 $5,200 0 1 2 3 45 n 0 1 2 3 45 Investment $10,000 $2,089 $1,839 $1,695 $1.594 CR(9%) $5,800 $3,611 $2,826 $2.402 $2,126 OC(9%) $2,000 $2,754 $3,114 $3,463 $2,382 AEC(9%) $7,800 $5,993 $5,516 $5,589 $5.580 Question 19 What would be the conclusion of this marginal analysis? (State when the old machine should be replaced). Edit View Insert Format Tools Table 12pt Paragraph BIUA 2 Thu Ola D BE To BB .0 In this marginal analysis the old machine should be replaced on year 4