The Briggs and Stratton Commercial Division designs and manufactures small engines for golf turf maintenance equipment. A robotics-based testing system with support equipment will ensure that their new signature guarantee program entitled “Always Insta-Start” does indeed work for every engine produced. (a) Compare the annual worth values of the two systems at MARR = 10% per year. Select the better system. (b) Determine the salvage value for the Push System that will make the company indifferent between the two systems.
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(a) In $1000 units
AWPull = -1500(A/P,10%,8) -700 + 100(A/F,10%,8)
= -1500(0.18744) -700 + 100(0.08744)
= $-972.416 ($-972,416)
AWPush = -2250(A/P,10%,8) - 600 + 50(A/F,10%,8)
= -2250(0.18744) - 600 + 50(0.08744)
= $-1017.368 ($-1,017,368)
Select the Pull System
(b) Set AWPush equal to $-972,416, and solve for SPush. In $1000 units
-972.416 = -2250(A/P,10%,8) - 600 + SPush (A/F,10%,8)
= -2250(0.18744) - 600 + SPush (0.08744)
0.08744 SPush = 49.324
SPush = $564,090
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