2. Project management presents many tools and techniques that allows the project manager to measure the amount of work actually performed on a project beyond the basic review of cost and schedule reports. (a) Why S-curves are an important project management tool? (5) (b) A contractor agreed to build 30 units of a product in 90 days at a price of RM800 per unit. 20 days later, the contractor has finished 8 units with an actual total cost (that includes his overhead and profit) of RM6800. Assuming that the work is sequential and not parallel (i.e. the contractor works on one unit till it is finished then starts the next unit and so on), calculate the following: i. BCWS ii. BCWP iii. ACWP iv. CV v. SV (15)