# Averaging

#### Lightfire

Joined Oct 5, 2010
690
Hi,

There's a lot of differences between public and private schools' averaging here in the Philippines.

Private schools often gives high grades.

So, I am asking you now the correct averaging.

CATEGORY---------PERCENTAGE---ITEMS-----SCORE--PUPIL PERCENTAGE

PROJECT----------------10%-------10%------95%/100%--------9.5
RECITATION--------------15%-----15%-------90%/100%--------13.5
HOMEWORK/SEATWORK---10%-----200--------185/200----------9.25
MONTHLY EXAM----------20%------50---------50/50------------20
PERIODICAL EXAM--------30%------50---------50/50------------30
QUIZ---------------------15%------25--------20/25-------------12

INSTRUCTIONS:

1. I divided my score to a total score. Like 20÷25.
2. I multiply the answer by 100. Like 0.8x100
3. I multiply the answer by 0.15. Like 80x0.15

Note: If you noticed, I add "0." before the category's percentage. Like "0.15"

My average will be 94.25. Right?

If there is something wrong please let me know.

P.S. The averaging system I made is the averaging system of most public schools here in the Philippines.

Thank you and answers will be greatly appreciated.

God bless.

#### Lightfire

Joined Oct 5, 2010
690
Yes.

but if you noticed, my quiz there is only 12 which is to be 13.5.

so 13.5 would be correct? my formula/method is 20 divided by 25. I multiplied the answer to 50. Then add more 50. Then times it to 0.15.

thanks.

#### jpanhalt

Joined Jan 18, 2008
8,475
The process of doing a weighted average is the same, regardless of the values assigned for the individual weights. You just need to update your values. You have added a couple of new columns, and your addition seems correct. Your current average is 94.25%, which is what you calculated. So, you seem to have the right idea.

John