How to calculate your weighted grade. To calculate your weighted grade all you need to do is multiply the mark you got in each part of your class by the percentage it is worth towards your final mark. You do the same for each part of the class and then add the answers together.For example if you got 85% on a test worth 20% of your final grade and 70% on an assignment worth 25% the sum would be (85 x 0.2) + (70 x 0.25) = 34.5% out of a possible 45%.To work out your weighted average so far you simply divide 34.5 by 45 and multiply by 100 = 76.67%.ou do the same for each part of the class and then add the answers together. For example if you got 85% on a test worth 20% of your final grade and 70% on an assignment worth 25% the sum would be (85 x 0.2) + (70 x 0.25) = 34.5% out of a possible 45%.
Meteorological fall began Sept. 1 and the autumnal equinox, which marks the astronomical start to fall, occurs Sept. 23, leaving some to wonder when temperatures will really begin to cool down and feel like fall. Your location will dictate what constitutes as fall temperaturse.
For example, under the definition of astronomical seasons, the June solstice marks the start of summer in the Northern Hemisphere, but it is the start of winter in the Southern Hemisphere. The same rule applies for the other seasons. The meteorological seasons in the Southern Hemisphere are also opposite to those in the Northern Hemisphere: 1  Fall (autumn) - starts March 1 and ends May 31; 2  Winter - starts June 1 and ends August 31; 3  Spring - starts September 1 and ends November 30; and, 4  Summer - starts December 1 and ends February 28 (February 29 in a Leap Year).