Answer:
There is a loss on buying from outside supplier ,Peach's offer should not be accepted.
Explanation:
Variable cost is a cost that varies with number of units produced or sold so it is always a relevant cost while making decision.
Fixed cost remains constant irrespective of number of units so it is a irrelevant cost unless avoidable.So in the given case ,fixed cost $70 is irrelevant since same will be incurred whether purchased or manufactured.
Incremental savings
Saving in variable cost 220
saving in fixed cost 25
Total saving 245
less: Incremental cost (270)
Incremental profit /(loss) on buying from outside supplier (25)
Total loss 25*5900= -147500
Therefore, There is a loss on buying from outside supplier ,Peach's offer should not be accepted.