Free Cash Flow $($FCF$)$

Carter Swimming Pools has $$18$ million in net operating profit after taxes $($NOPAT$)$ in the current year. Carter has $$12$ million in total net operating assets in the current year and had $$8$ million in the previous year. What is its free cash flow? Enter your answer in dollars. For example, an answer of $$1\mathrm{.}2$ million should be entered as $1,200,000.$ Round your answer to the nearest dollar.