Barley Scanners Ltd. expects its sales to increase by 10% per year over the next two years. As per the calculation, the sales two years from now would be exactly double the sales one year ago. Which of the following best represents the percent increase (approximate) in sales from the last year to this year?

Let last year's sales be 100, making this year's sales 100 + x. The problem states sales two years from now will be double the sales one year ago, so (100 + x)(1.1)^2 = 2(100), which gives (100 + x)(1.21) = 200. Solving for x gives x = 65.28, meaning the percent increase from last year to this year is approximately 65%.

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