The sales tax rate is calculated by dividing the sales tax amount by the pre-tax cost of the item. For an electric toothbrush that costs $60 with a sales tax of $3.60, the sales tax rate is 6%.
To calculate the sales tax rate, you need to divide the amount of sales tax by the cost of the item before tax. Using the given figures, the electric toothbrush costs $60 and the sales tax is $3.60. Therefore, the sales tax rate is calculated as $3.60 รท $60. This results in 0.06, which is then converted into a percentage by multiplying by 100, giving us a 6% sales tax rate.
The sales tax rate for the electric toothbrush is 6%. This was determined by dividing the sales tax by the cost of the item and then converting it to a percentage.