In numbers of more than 3 digits, always use commas. This makes reading much easier.
❌ Figure: Bad example - No commas make it harder to read
✅ Figure: Good example - Commas make it easier to read
Numbers which normally do not take commas are:
Note: Different countries use a periods in place of comma and vice-versa. E.g. In United States and Australia: 2,367.48 francs / In France: 2.367,48 francs .