# Chapter 16. The Goal Seek Command

• For a given price, how many glasses of lemonade does a lemonade store need to sell per year to break even?

• We want to pay off our mortgage in 15 years. The annual interest rate is 6 percent. The bank’s told us we can afford monthly payments of \$2,000. How much can we borrow?

• I always had trouble with "story problems" in high-school algebra. Can Excel make solving story problems easier?

The Goal Seek feature in Excel enables you to compute a value for a spreadsheet input that makes the value of a given formula match the goal you specify. For example, in our lemonade store example from Chapter 15, suppose we charge \$3.00 a glass. We want to know how many glasses we need to sell to break even. We can use Goal Seek to ...

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