Tax sucks, trust me. Since we use tax often in our lives, it's quite easy nowadays.
Switch the 7% tax to a number that can be used in a calculation.
Always divide the percent (7%) by 100%.
7% divided by 100% = 0.07
Now, you need to find out the total cost.
Always multiply 0.07 by 1500.
0.07 × 1500 = 105.
Now that we know that you have to pay an extra $105 tax, we can add it with the original price.
$1500 + 105 = 1605.
Your total price for the computer will be: $1605.