6. TALEB FIRST student services copy center purchased a copy machine at a cost of KD25,000. Maintenance costs were KD5500 the first year, KD 1500 the second year, and KD1,300 the third year. The copy center sold the machine at KD35,000 since the maintenance cost in the first year included the installation of a computerized printing network thus increasing the value of the copy machine. Determine the sensitivity of the rate of return to a +25% change in a. Purchase price. b. Selling price