How do you do percentage?

Answer 1

For fractions you just divide the numerator (the top number) by the denominator (the bottom number). then take the result and multiply it by 100, and put a percentage sign behind it. For ordinary numbers you need to know what the percentage refers to - that is, what is 100% To calculate what percentage A is of B, we do the same as we did with the fractions - divide A by B and multiply by 100, so that to find out what percentage 40 is 160 we divide 40 by 160 and get 0.25 and we multiply that by 100 and 25%.

Answer 2

What is 45% of 250:

45 ÷ 100 × 250 = 112.5

What percentage is 19 correct answers out of 55 questions:

19 ÷ 55 × 100 = 34.5%