Calculations that You Should Be Able to Do



So, what was the basic equation for percentage calculations?

Drag the four boxes below to form the equation.

Amount of Specific Item
Percentage
Total Amount Of All iItems
100


=
%



The basic equation for calculating percentages is:

Percentage =      Amount of Specific Item      x 100%
Total Amount Of All Items


You need to be able to calculate all three parts of this equation given two of the others ie you need to be able to calculate:

  1. percentage
  2. the amount of a specific item
  3. the total amount of all items

You can do all the calculations using arrangements of this one equation.