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Excel tip:

Naming and Using Constants

Constants make calculations easier so worksheets are more easily understood. Constant values also need to be given relevant and memorably names. It is also easier to change the value of a constant.

For example:
Instead of entering 17.5% in each cell when you generate a VAT amount you could name a Constant "VAT" and assigning a "0.175" value to it. To do this:

From the 'Insert' menu select 'Name', then select 'Define'.

Enter the constant

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