Color of Diff Oil. I replaced my differential fluid at 60k miles, I'm now at 71k and today when getting my oil changed the guy showed me the oil and it was dark brown in the rear while the front was still the clearish-yellow like it was when I put them in.
The average tax rate is the tax rate you pay when you add all sources of taxable income and divide that number into the amount of taxes you owe. In other words, you can calculate your average tax rate by dividing your total tax obligation by your total taxable income.
The individual income tax is structured to be progressive in the sense that the effective tax rate increases as income rises. In 2014, the bottom 20 percent of taxpayers face an average tax rate of -4.5 percent, which is essentially a tax subsidy.1 The top 1 percent of taxpayers face an average tax rate of 24.6 percent.