Percentage Calculation
1. Formula for Percentage : Percentage = 100 x Part / Whole
It answers the question " What is percentage of part compared to whole?".
Example : What is the percentage of 8 compared to 20?
% = 100 x 8/20
= 40 %
2. Formula for Part : Part = Whole x Percentage / 100
It answers the question " What is part of particular percentage?".
Example : What is the 40% percentage of 20?
Part = 20 x 40/100
= 8
3. Formula for whole : whole = 100 x Part / Percentage
It answers the question " What is whole if something as part in percentage?".
Example : What is the 100% if part is 8?
whole = 100 x 8 / 40
= 20
Units Calculation
1. 1 Meters = 1000mm or 1 mm = ( 1 / 1000 ) Mtrs
2. 1 cm = 10mm or 1mm = ( 1 / 10 ) Cms
Area Calculation :
1. Square = a x a (Where a is length of side)
2. Rectangle = l x w (Where l is length and w is width)
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