Mr. Calvin Keane has a spouse and a 20 year old dependent son. Mr. Keanes 2020 Net Income For Tax Purposes is 109,483. For 2020, Mr. Keanes spouse has no income and his son has Net Income For Tax Purposes of 7,843. During 2020, Mr. Keane and his spouse have medical expenses of 6,864 . His son has medical expenses of 4,494 which Mr. Keane paid. Determine Mr. Keanes medical expenses credit for 2020