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The percent change is the increase or decrease in the value of a quantity. If the new value is larger than the original value then it is a percent increase and if the change in value is lesser than the original value it is called percentage decrease.

Discount is a percentage of the original price that is subtracted from the price of the item the final price is called selling price. It is a percent of the decrease in the cost.

Sales tax is a tax that is added to the price of the item the final price is called selling price. It is a percent of increase in the cost.

We are given the following price and the discount percentages:

Printer: $60.00

discount: 25%

tax: 6.75%

The discount is 25% of the price. We will subtract this amount from the original price.

The tax is 6.75% of the price. We will add this amount to the original price.

So If x represents the new price after subtracting the discount then we have:

$\begin{array}{l}x=\text{Cost+}\left(\text{Tax\%ofCost}\right)\text{-}\left(\text{Discount}\%\text{ofCost}\right)\\ x=\$60.00+\left(6.75\%脳\$60.00\right)鈭�\left(25\%脳\$60.00\right)\\ x=60+\left(\frac{6.75}{100}脳60\right)鈭�\left(\frac{25}{100}脳60\right)\\ x=60+\left(0.0675脳60\right)鈭�\left(0.25脳60\right)\\ x=60+4.05鈭�15\\ x=64.05鈭�15\\ x=\$49.05\end{array}$

Thus, the final price of the printer is $49.05.