Hi Everyone, I'm having trouble trying to figure out the solution to the following questions. Can someone please be kind enough to post the solutions to solving these? I think the main problem I'm having is that the information is given for activities in the project and not as a whole which is throwing me off.

All the questions are based on the below information.

Activity A is worth $300, is 100% complete, and actually cost $350. Activity B is worth $100, 95% complete, and actually cost $85. Activity C is worth $200, is 75% complete, and has cost $175 so far. The total budget is $1500.

First questions asks What is the estimate to complete for the project? Answer is $1075.39

Second question asks What is the cost variance for the project? Answer is -$65

Third question asks What is the schedule variance for the project? Answer is $-55

Fourth question asks What is the total earned value for the project? Answer is $545

Fifth question asks What is the estimate at completion for the project? Answer is $1685.39

Sixth question asks What is the cost performance index for the project? Answer is 0.89

Seventh question asks What is the variance at completion for the project? Answer is $-185.39

Thank you everyone in advance