Performance Analysis on the Flats Project in Maluku I with the Earned Value Method

— Flats Construction Project in Maluku I at Nania Village, Ambon City is a construction project that built to answer the needs of the community. Flats Construction Project in Maluku I at Nania Village, Ambon City was carried out on May 20, 2018 and was scheduled to be completed on November 20, 2018. However, in the implementation until November 30, 2018 the progress of the work had only reached 69.79%, so that the adenddum was extended by 50 days until with 30 December 2018. The purpose of this research is to find out the schedule performance and cost performance in Flats Construction project in Maluku I at Nania Village, Ambon City using the Earned Value concept.The method used in this study is the yield value method. The yield value method can be used as a performance measurement tool that integrates cost aspects and time aspects. The data collection techniques used in this study are the interview method, observation method and literature method. The variables contained in this study are two types of variables namely the independent variable namely time and the dependent variable namely cost. The data analysis technique uses the earned value method.From the results of the analysis at 9th week, 14th and 21st schedule performance index (SPI) <1 which means that project performance is slower than the planned schedule so that the project has a time lapse with a weight of 21.30% of the 180 workday planning schedule and cost performance index (CPI ) <1 which means the actual cost (ACWP) incurred is greater than the value of the work obtained (BCWP) so that the project experiences a fee deviation of Rp.159,787,216.18 from the RAB of Rp.16,796,733,000.00 (Contract Value) .


I. INTRODUCTION
Flats Construction Project in Maluku I at Nania Village, Ambon City is a construction project created to answer the needs of the community. This project has a building area of 61.25 m x 12.75 m (780.94 m2) consisting of 4 floors and 1 basement. The number of units contained in the Flats Construction Project in Maluku I at Nania Village was 58 Unit Type 36 (52 General Units, 6 Disability Units) with a budget value of Rp. 16,796,733,000.
Flats Construction Project in Maluku I at Nania Village, Ambon City was carried out on May 20, 2018 and was scheduled to be completed on November 20, 2018. However, in the implementation until November 30, 2018 the progress of the work had only reached 69.79%, so that the adenddum was extended by 50 days until with 30 December 2018.
This delay certainly has an impact on the planned costs and time. One of the costs and time control so that the project is still implemented and completed well is using the earned value method.

II. LITERATURE REVIEW 2.1 Earned Value Method
Earned Value Method is the concept of calculating the amount of costs according to the budget in accordance with the work that has been carried out or completed (budgeted cost of work performed). When viewed from the amount of work completed this concept means to measure the amount of work units that have been completed at a time when judged based on the amount of budget provided for the work. With this calculation, it is known that the relationship between what has actually been achieved physically and the amount of budget spent (Iman Suharto, 1995). Earned Value = (% completion) x (budget) (eq.1) Notes : 1.% of completion achieved at the time of reporting. 2. The budget in question is the real cost of project.

Cost Performance Index (CPI)And Schedule
Performance Index (SPI) Cost Performance Index (CPI) is a cost efficiency factor that has been incurred can be shown by comparing the value of physically completed work (EV) with costs that have been incurred in the same period (AC). This CPI value shows the weight of the value obtained (relative to the overall project value) against the costs incurred. A CPI of less than 1 indicates poor cost performance, because the costs incurred (AC) are greater than the value obtained (EV) or in other words waste occurs.
Schedule Performance Index (SPI), a factor of performance efficiency in completing work can be shown by the comparison between the value of work that has been physically completed (EV) with planned expenditure of expenses based on the work plan (PV). The SPI value indicates how much work can be completed (relative to the whole project) to the unit of work planned. SPI value less than 1 indicates that job performance is not as expected because it is not able to achieve the planned work targets.Project managers often want to know the use of resources, which can be expressed as a productivity index or performance index. This performance index consists of Cost Performance Index (CPI) and Schedule Performance Index (SPI). Cost performance index (CPI) = EV / AC or CPI = BCWP / ACWP (eq.4) Schedule performance index (SPI) = EV / PV or SPI = BCWP / BCWS (eq.5)

Projected Cost Expenditures and Project Completion Period
Making cost estimates or project completion schedules based on indicators obtained during reporting will provide a hint of the Estimated At Completion (EAC) and Estimated At Schedule (EAS). Cost estimates or schedules are useful because they provide early warning about things that will happen in the future. If the remaining work is considered to have the same performance as at the time of reporting, the Estimate Tomporary Cost (ETC)is: ETC = (BAC -BCWP) / CPI (eq.6) EAC = ACWP -ETC (eq.7) Whereas Estimate Temporary Schedule (ETC) is: ETS = (remaining time) / SPI (eq.8) EAS = end time + ETS (eq.9) Notes

III. RESEARCH METHODOLOGY 3.1 Research Sites
This research is located in the Flats Construction Project in Maluku I at Nania Village, Ambon City.

IV. RESULTS AND DISCUSSION 4.1 Calculations of Actual Cost Of Work Performed (ACWP)
ACWP value at the time of reporting: 1) In the 21st week reporting Rp.9.656.660.054,38

Calculation of Cost Variance (CV)
CV values at the time of reporting: 1) In the 21st week reporting CV = BCWP -ACWP CV = Rp.9.496.872.838,20 -Rp.9.656.660.054,38 CV = Rp. 159.787.216,18 For the calculation of the following week can be done in the same way as above, here are the results of the CV calculation from week 1 to week 21.

Calculation of Schedule Variance (SV)
SV values at the time of reporting: 1) In the 21st week reporting SV = BCWP -BCWS SV = 56.54% -77.84% SV = -21.30% For the calculation of the following week can be done in the same way as above, here are the results of the SV calculation from week 1 to week 21.

Analysis of Earned Value Indicators, Cost Variance (CV) and Schedule Variance (SV)
Following are the results of the analysis of the results value indicators presented in graphical form as below :

Fig.3: S Curve Graph of Earned Value
From the calculation of CV (cost variance) and SV (schedule variance) above, it can be analyzed as follows:

SV CV Information
Negative Negative Work is completed late and costs are higher than the budget The analysis can be seen in Table.1: Analysis of Integrated Variants (ImanSoeharto, 2001: 23).

Calculation of Cost Performance Index (CPI)
CPI values at the time of reporting: 1) In the 21st week reporting CPI = BCWP / ACWP CPI = 9.496.872.838,20 / 9.656.660.054,38 CPI = 0.98 <1 means the actual cost (ACWP) incurred is greater than the cost of real field plan work (BCWP). For the determination of the cost performance index (CPI) can be seen in Table.2: Analysis of Performance Index (ImanSoeharto, 2001: 237). For the calculation of the following week can be done in the same way as above, here are the results of the CPI calculation from week 1 to week 21.

V. CONCLUSION
Based on the analysis using the earned value method in the Flats Construction Project in Maluku I at NaniaVillage, Ambon City, the following results were obtained: 1) From the results of the analysis at 9th week, 14th and 21st schedule performance index (SPI) <1 which means that project performance is slower than the planned schedule so that the project has a time lapse with a weight of 21.30% of the 180 workday planning schedule. 2) From the results of the analysis at 9th week, 14th and 21st cost performance index (CPI ) <1 which means the actual cost (ACWP) incurred is greater than the value of the work obtained (BCWP) so that the project experiences a fee deviation of Rp.159,787,216.18 from the RAB of Rp.16,796,733,000.00 (Contract Value).