Canteen X is currently facing problems related to its income. During the first year
of opening, Canteen X managed to get the highest profit of Rp.30,000,000,.00
per month. However, as time goes by, many competitors show up, and the price
of goods increases, making the profit gained by the Canteen decrease. These
competitors also operate under the auspices of the company. Now Canteen X
can only get a profit of around Rp.7,000,000.00. This canteen spent Hundreds of
millions of rupiahs on the cost. Moreover, this canteen also experienced
Rp.6,413,000 lost last September. The highest loss experienced by Canteen X
was when they lost Rp.20,000,000.00. Because of this loss, the employees said
that they did not get their salaries fully. The owner of the canteen was repeatedly
attempting not to continue the business and switching to another business that
might be more profitable. But at this time, the owner has not found another
business that can be run and still hopes that this business can still be run. For
that, improvement of Canteen X’s feasibility to increase its profit will be
conducted.
There are two alternatives that become considerations to solve the problem,
which are labour management and inventory control. Further observation and
interviews are conducted in advance. Multi-criteria decision analysis method is
used to choose the best solution, and the result, inventory control, is the best
solution. The methods used in this research are the Continuous Review Method
and the Periodic Review Method, with the simulation done using Microsoft Excel
software. These two methods are chosen because the methods can solve
inventory problems for independent materials, whereas the materials are chicken
and meat.
The results of this study are the quantity and period of the order of chicken and
meat so that it can minimize the total inventory cost. Based on the simulation
carried out for chicken, the best result is by applying the P model with six days
period and TSL of 269 kg. Meanwhile, for meat, the best result is by applying the
P model with six days order period and TSL of 40 kg. With the new inventory
policy simulation, there is 21% of the money saved compared to the current
inventory policy, and there is 45% of the money saved for meat.