This document discusses Ball Corporation's use of non-GAAP financial measures including EBITDA, EBIT, net debt, and free cash flow to evaluate the company's performance and financial position. It provides Ball's calculations and figures for EBITDA, EBIT, net debt, and estimates of free cash flow and cash flows from operating activities for 2008. Ball uses these measures internally to evaluate pre-tax cash flows, credit quality, and strategic investments and believes they should be considered alongside GAAP financial measures.