For a gross income of $\$57000$$57000, calculate the net income when:
Tax is $\$13100$$13100 and voluntary superannuation is $\$2700$$2700.
Tax is $\$13000$$13000, voluntary superannuation is $\$3600$$3600 and health insurance is $\$3300$$3300.
Tax is $\$14500$$14500, health insuranceĀ is $\$10300$$10300 and union fees are $\$560$$560.
Bill earns $\$843.50$$843.50 per week and has the following deductions from his gross wage: Tax $\$253.05$$253.05, superannuation $\$85$$85 and union fees $\$25.61$$25.61.
Christa earns $\$2563.65$$2563.65 every two weeks and has the following deductions from her gross wage: tax at $\$559.17$$559.17, superannuation at $\$79$$79 and union fees at $\$22.47$$22.47.
If tax is stated as being $15.9$15.9 cents in the dollar, what percentage tax is this?