XYZ makes an electric skateboard-like scooter that is small enough to fit into a school locker. Production for the year 2014 is budgeted at 20,000 scooters. Currently, XYZ makes all of the parts for...

XYZ makes an electric  skateboard-like scooter that is small enough to fit into a school locker. Production for the year 2014 is budgeted at 20,000 scooters. Currently, XYZ makes all of the parts for manufacturing the scooter. However, an outside source has offered to make and sell XYZ 20,000 steering columns for P90 each. The controller of XYZ has researched the cost to produce the steering column in house and has found the following cost structure:

Fixed costs of P40,000 represents depreciation on special equipment designed to make the steering columns. The equipment cannot be used for any other purpose. The supervisory salary of P70,000 is for the supervisor of the assembly line where the steering columns are made. The supervisor is not involved with the manufacture of any other parts. Therefore, his salary can be eliminated if the steering columns are purchased. The other fixed costs of P2,000 are allocated costs and cannot be eliminated.

1. Determine the additional profit or (loss) of buying from the outside supplier.

2. Determine the minimum number of units wherein it would be worthwhile for XYZ to make the units.