please answer all the question and show the calculation.

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(a) The following questions refer to table below. % siap/% complete Jan Feb Mar Apr May Jun Jul 500 150 200 Aktivity! Jumlah kes Activity belaniawan (RM) Total budgeted cost (RM) A 650 B 350 1,100 D 800 E 2,700 F 3.000 G 750 Kos sebenar (RM) Actual cost (RM) At the end of June, 150 800 300 300 300 700 200 2,000 3,000 350 400 100% 100% 80% 70% 50% 40% 25% 600 400 900 800 800 2,800 i. What is the cumulative budgeted cost? ii. What is the cumulative actual cost? Determine whether there is a cost overrun or underrun? iv. What is the cumulative earned value of the project? V. What is the Cost Performance Index