Please solve this using Excel, and show both the formulas and the answer. Thank you!

Problem 3. The following project is at the end of its 6th week. Find the cost and schedule variances. Also find the CPI and SPI. Then find the critical ratio of the project using earned value calculations. Finally, calculate the EAC for the project by at least two different methods. Activity % Complete Predecessor Duration (wks) Actual Cost (S) Budget at Completion ($) 300 200 300 600 400 400 250 amon+ 100 100 100 30 300 200 cd a. CV = b. SV = C. CPI = d. SPIE e. CR= f. EAC=