guys I'm literally clueless my teacher "helped" me but i still don't get it. SOS

Q. A shop in Texas uses the equation y=1.0625x to find the total price after taxes are added (y) for an item that is priced at dollars.

What is the percent sales tax?

Feedback my teacher gave me :

think of the equation as a percent equation what percent are you multiplying to find the original price (x) by to find the total price after taxes are added?

Once you identify the percent you are multiplying by, ask, what percent has been added to the 100%

Please help me and explain it if you can ヾ(*’O’*)/

0625 = 6.25%

so 1.0625 = 1 + 6.25%
or 106.25% of the original price