Table of Contents Reconciliations of adjusted operating profit margin to the most directly comparable GAAP measure, operating profit as a percent of sales and revenues are as follows: Reconciliations of adjusted profit before taxes to the most directly comparable GAAP measure, consolidated profit before taxes, are as follows: Reconciliations of adjusted profit per share to the most directly comparable GAAP measure, diluted profit per share, are as follows: $^{1}$ At statutory tax rates. 2017 is prior to consideration of U.S. tax reform. Full year 2017 also includes $15 million increase to prior year taxes related to non-U.S. restructuring costs. $^{2}$ At statutory tax rates. 2017 is prior to consideration of U.S. tax reform. Per share amounts computed using fully diluted shares outstanding except for consolidated loss per share, which was computed using basic shares outstanding. We are providing supplemental consolidating data for the purpose of additional analysis. The data has been grouped as follows: Consolidated –  Caterpillar Inc. and its subsidiaries. Machinery, Energy & Transportation –  Caterpillar defines Machinery, Energy & Transportation as it is presented in the supplemental data as Caterpillar Inc. and its subsidiaries with Financial Products accounted for on the equity basis. Machinery, Energy & Transportation information relates to the design, manufacturing and marketing of our products. Financial Products' information relates to the financing to customers and dealers for the purchase and lease of Caterpillar and other equipment. The 59 Supplemental Consolidating Data Three Months Ended December 31, Twelve Months Ended December 31, 2018 2017 2018 2017 Profit (Loss) per share - diluted $ 1.78 $ (2.18) $ 10.26 $ 1.26 Per share restructuring costs  1 $ 0.13 $ 0.31 $ 0.50 $ 1.68 Per share mark-to-market losses  2 $ 0.66 $ 0.26 $ 0.64 $ 0.26 Per share deferred tax valuation allowance adjustments $ (0.11) $ (0.18) $ (0.01) $ (0.18) Per share U.S. tax reform impact $ 0.09 $ 3.91 $ (0.17) $ 3.95 Per share gain on sale of equity investment 2 $ — $ — $ — $ (0.09) Adjusted profit per share $ 2.55 $ 2.16 $ 11.22 $ 6.88 Three Months Ended December 31, Twelve Months Ended December 31, (millions of dollars) 2018 2017 2018 2017 Profit before taxes $ 1,367 $ 1,111 $ 7,822 $ 4,082 Restructuring costs $ 93 $ 245 $ 386 $ 1,256 Mark-to-market losses $ 495 $ 301 $ 495 $ 301 Gain on sale of equity investment $ — $ — $ — $ (85) Adjusted profit before taxes $ 1,955 $ 1,657 $ 8,703 $ 5,554 Three Months Ended December 31, Twelve Months Ended December 31, 2018 2017 2018 2017 Operating profit as a percent of total sales and revenues 13.1% 10.8% 15.2% 9.8% Restructuring costs 0.7% 1.9% 0.7% 2.7% Adjusted operating profit margin 13.8% 12.7% 15.9% 12.5%