Need help with this problem, especially the NOPAT part. If explanations are provided on how to solve it that would be great!

Computing NOPAT, NOPM and RNOA Selected information from the financial statements of GoPro, Inc. is provided below: Assume a statutory tax rate of 35%. a. Compute GoPro's net operating profit after taxes (NOPAT) for 2014 and 2013. Round answers to the nearest whole number. b. Compute GoPro's net operating profit margin (NOPM) for each year. Round answers to one decimal place. (Ex: 0.2345=23.5% ) c. Compute GoPro's return on net operating assets (RNOA) for 2014. Round answers to one decimal place. (Ex: 0.2345=23.5% )