A teacher who makes $54000 per year $8400 in taxes, and $1200 in union does what fraction of the tea

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A teacher who makes $54000 per year $8400 in taxes, and $1200 in union does what fraction of the teacher’s income does she have left

Calculate Net Income:
Net income = Earnings - Taxes - Union Dues
Net income = 54000 - 8400 - 1200
Net income = 44,400

Net Income Percent = 100% * Net Income / Earnings
Net Income Percent = 100% * 44,400/54,000
Net Income Percent = 100% * 0.8222
Net Income Percent = 82.22%