Lets say you're enrolled in a class. You currently have a grade of 65, and you need at least a 70 to pass the class. Luckily, you have one final assignment that might be able to raise your average. You can use Goal Seek to find out what grade you need on the final assignment to pass the class. Below, you can see that the grades on the first four assignments are 58, 70, 72, and 60. Use Goal Seek under "What-if Analysis" to determine the required Test 3 score. Let's say you're planning an event and want to invite as many people as you can without exceeding a budget of $500