Edna took care of her disabled adult daughter, Mary, during the year. Mary worked part-time and earned income of $8,000 in 2020. Edna also earned $30,000 during the year. The 2020 tax credit base claim for an infirm adult dependant relative is $7,276 and there is a claw back of 15 percent for every dollar by which the dependant's income exceeds the base. Required: Calculate Edna's Canada Caregiver credit for 2020. Show all calculations