What is 45.3% expressed as a decimal?

45.3% = 0.453 in decimal form.

Step-by-step explanation: Percent means 'per 100'. So, 45.3% means 45.3 per 100 or simply 45.3/100.

If you divide 45.3 by 100, you'll get 0.453 (a decimal number). Read more below on this webpage.

As you can see, to convert from percent to decimal just divide the percent value (45.3) by 100, and remove the "%" sign.