Refer back to the sample project examined in the project, part two, and imagine that everything is executed perfectly. You have now reached the end of time period $16.$ Activity $4-5$ is completed as scheduled, and Activity $3-6$ is also finished, two periods ahead of schedule. Resource A was expected to cost $$5,000$ per period for $7$ periods. However, the actual cost was $$6,000$ per period for $5$ periods. This means you are now ahead. In answering the questions below, remember that Resource A has a planned cost of $$5,000$ per period of use, and Resource B has a planned cost of $$3,000$ per period of use. $1.$ What is the cost variance?