From table – 150 000kg → 2031 NAM 335 mins

335 mins – 100mins (1hr 40 mins) = 235mins

From table 235 mins → 1419 NAM

NAM distance = 2031 – 1419 = 612 NAM

Wind 100kts HW, 1hr 40mins(1.66hrs)  100 x 1.66 = 166NM

Ground distance = 612 – 166 = 446 NGM