How to deal with the sum of rounded percentage not being 100?

Question

Suppose we have a list of items with an integer:

USA:       3 people
Australia: 2 people
Germany:   2 people

If we calculate the percentage

Answer 1

You may "cheat" a bit by summing all the rounded results but the last and giving to the last one the value of 100 - the previous sum...

In this case, you would have :

USA = 43
Aus = 29
Ger = 28  (100 - (43 + 29))

But that's only a dirty trick... You should rather follow the more honest/accurate solution given by Matt as mine seems to indicate that Germany percentage is less than Australian one.