What amount do I put in the "expected increase percent per year" and the "dividend growth rate average percentage per year" box?

For the dividend growth rate (DGR) average percentage per year, the calculation is DividendYearX and divided by Dividend Year (X-1) - 1.

For expected increase percent per year, you should calculate the company's dividend hikes over the last ten years and determine the average. This is achieved by adding the increases and then dividing it by the number of increases.

Also, a great source is the Future Value Calculator, which can give you an estimate of potential dividend increases in the future. This helps somewhat simplify the process.