WBS ( Work Breakdown Structure ) :
Cost Computation:-
INITIAL COST:-
Cost Calculation for 4 months (Assumptions):
Total Cost = (Fixed + Variable + Other)
= (47000 + 107000 + 16400)
= 170,400
Project Completion = 4 months (including weekends)
Total working days = 90 days (excluding weekends)
CONTRACTOR:
1) Smart Agency (Manpower Hiring) – S$ 10,000
2) Compass Enterprises (Construction/Office Setup) – S$ 5,0003) Globalware Trading (Utilities) – S$ 4,000
4) KAZA Enterprises (Aircon/Refrigeration) – S$ 2,000
5) Exploid Technologies (RFID Installation) – S$ 1,000
6) Impac Advertising (Advertising) – S$ 1,000
S$ 23,000
RUNNING COST:-
Cost Calculation for 1 year:
No. of workers working in a Minimart = 10 persons
SALARIES [10 persons]:
Supervisor (1 person@2500/month) = S$ 2,500
Cashiers (3 persons@1500/month) = S$ 4,500
Sales Assistant (3 persons@1200/month) = S$ 3,600
Store Keeper (3 persons@1200/month) = S$ 3,600
S$ 14,200
Salaries of 10 workers for 12 months (14200 x 12) = S$ 170,400
Additional cost of goods purchased = S$ 50,000
Rental for 12 months (12 x 3500) = S$ 42,000
Human Resource = S$ 10,000
Net Total S$ 272,400
Total Cost after 1 year 4 months = (170,400 + 272,400) = S$ 442,800
Total Annual Revenue collected (3,000 x 365 days) = S$ 1,095,000
ROI:
= (Gain – Cost) / Cost
= (1095000 – 442800) / 442800
= 1.47
= 147%
Hence, ROI > 0.5.
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