How to write a percent: language and country-specific tables
Percents are written differently in different parts of the world and in different languages. The writing style can be, for example, '75.6%', '75,6%', '75.6 %', '75,6 %' or even '%75.6'. See the writing rules in the tables that list almost all countries and languages in the world.
Decimal separator and thousand separator
In English-speaking countries, a dot is used as a decimal separator. The European custom is to use a comma. A dot, comma, or space are used as thousand separators in different parts of the world. See the table for the practices of each country.
Percent sign and space: 50% is English, 50 % is European
There is no space between the percent sign (%) and the number in English language. In other European languages there is. However, it is common to leave the space out.