To determine the tax rate for the $7,000 of taxable income earned over $91,150, you would typically refer to the tax brackets outlined by the tax system in question. Since you've provided that the top tax rate applies to income over $91,150, you would need to know what that tax rate is for the income in that range.
Assuming you have the current tax rate for that specific range, simply apply that rate to the $7,000. For example, if the tax rate for income over $91,150 is 24%, then the tax owed on the $7,000 would be calculated as follows:
Tax Rate = 24% Tax on $7,000 = $7,000 * 24% = $1,680
If you provide the tax rate that corresponds to the income over $91,150, I can help you calculate it accurately.