Answer and Explanation:
The preparation of the analysis showing whether the old machine should be retained or replaced is presented below:
Particulars Retained equipment Replace equipment Change in the net income
Variable cost $1,560,000 $1,230,000 $330,000
($520,000 × 3 years) ($410,000 × 3 years)
Cost of the new
machine $300,000 -$300,000
Net change $30,000
As we can see the amount comes in positive which reflects that the machine should be replaced