please help me here. Thank you!

You are working on a project monitoring and control team at the end of June. The project is planned for a 12-month duration (Jan. ~ Dec.) and a $250,000 overall budget. You and your team members have collected data in the table below by the end of June (figures are in thousands except % Comp.): Activity Jan Feb Mar Apr May Jun Plan % Value Comp. Staffing 8 7 15 100 Blueprinting 4 6 10 100 Prototype Development 2 8 10 100 Full Design 7 8 10 25 60 Construction 55 55 20 Transfer 0 0 Monthly Plan Cumulative Monthly Actual 10 15 6 14 9 40 Cumulative Actual a. Calculate the cumulative planned and cumulative actual monthly budgets through the end of June. Complete the earned value column on the right. b. Calculate the Planned Value (PV), Earned Value (EV), Actual Cost of work performed (AC), Schedule Performance Index (SPI), and Cost Performance Index (CPI). c. Calculate the Estimate to Complete (ETC), the Estimate at Completion (EAC), and the To-complete Performance Index (TCPI) for each of the situations described below: i. Work to date is good estimate of future ii. Original plan is good estimate of future iji Both CPI and SPI affect the rest of the project