VAT Exclusion Calculation--- when to use it?

So the calculation for "VAT exclusion" is (Gross Amount / 1 + VAT%) - Gross Amount
But when do you actually use this, what does it actually tell us?
Thanks.
But when do you actually use this, what does it actually tell us?
Thanks.
0
Answers
GROSS AMOUNT - (Gross Amount / 1 + VAT%)