The 9,000 participating households (over 18,000 people) in the National Measurement are outfitted with what's called a Nielsen People Meter.. This device measures two things - what program or channel is being watched and who in the household is watching.
Leander, TX Sales Tax Rate. The current total local sales tax rate in Leander, TX is 8.250%. The December 2017 total local sales tax rate was also 8.250%. Sales Tax Breakdown
I think the sales tax in Texas is universal. The rate you pay for household items at Target is taxed at the same rate you pay for the car. The 6.25 % you described is the (base) sales tax rate the State of Texas charges exclusive of City, County, or other taxing authority (in Houston's case: METRO) rates. When I bought my used car in a West Houston dealership, I think I got charged Houston's tax rate of 8.25 %.