Sharon sells authentic Amish quilts on her website. Suppose Sharon expects to sell 2,000 quilts during the coming year. Her average sales price per quilt is $400, and her average cost per quilt is $300. Her fixed expenses total $100,000. Compute Sharon's operating leverage factor at an expected sales level of 2,000 quilts. If sales volume increases 12%, by what percentage will her operating income change? Prove your answer by calculating operating income at a sales volume of 2,000 and at a sales volume of 2,240 . Compute her operating leverage factor. (Round your answer to two decimal places.) First, identify the formula, then compute the operating leverage factor. If sales volume increases 12%, by what percentage will her operating income change? (Round the percentage to the nearest tenth percent, X.X\%.) Operating income will increase by % Prove your answer. (Round the percentage to the nearest tenth percent, X.X\%.)