4. You are the project manager, there are a total of 8,400 hours of work schedule on the project. You made your checks with the accounting department, and they told you that you have spent a total of 1,144,000. According to the schedule, your team should have worked 5000 hours, but your foreman says that the team was allowed to work some overtime, and they have actually put in 5600 hours of work. Calculate the following Earned Value numbers and write their full meaning of the following: - PV, EV, CV, BAC, AC, SV, SPI, and CPI