What is Marginal cost and Marginal revenue each semester? If there is any information missing to calculate is; what would that information be?

Average Real Nominal Nominal Mfg. Rep's Earnings Sales Price/Ton Price Revenue Commission Total Cost before Tax (Tons ($000) ($000) ($000) Rate ($000) ($000) 2001 2h 0 0 0 O 5 % 129,840 -129,840 2002 1h 75 2,004 3,253 243,975 5 % 251,454 -7,479 2002 2h 100 1,997 3,269 326,903 5% 309,175 17,728 2003 1h 150 2,004 3,315 497,280 5% 425,488 71,792 2003 2h 175 2,004 3,364 588,618 5 % 492,402 96,216 2004 1h 185 2,004 3,423 633,271 5% 541,866 91,405 2004 2h 200 2,006 3,482 696,312 5% 605,633 90,680 2005 1h 225 2,001 3,535 795,292 5 % 727,298 67,994 2005 2h 275 2,002 3,554 977,303 6 % 988,973 -11,670 2006 1h 285 2,003 3,583 1021,067 6 % 1042,133 -21,065