tax.rb

def tax_brackets(salary)
  current = salary
  total = 0

  if salary > 8_700
    total += 8_700 * 0.10
  else
    return salary * 0.10
  end

  if salary > 35_550
    total += (35_550 - 8_700) * 0.15
  else
    return total + (salary - 8_700) * 0.15
  end

  if salary > 85_650
    total += (85_650 - 35_550) * 0.25
  else
    return total + (salary - 35_550) * 0.25
  end

  if salary > 178_650
    total += (178_650 - 85_650) * 0.28
  else
    return total + (salary - 85_650) * 0.28
  end
end

def percentage(salary)
  tax = tax_brackets(salary)
  tax.to_f / salary * 100
end



puts tax_brackets(5000) # 500.0
puts tax_brackets(10_000) # 1065.0

puts tax_brackets(100_000) # 21440.5
puts percentage(100_000) # 21.4405