1. Spell out figures followed by the numerals in parentheses.

2. Do not round off the figures when writing the numerals.

    Examples:

    five thousand six hundred dollars ($5,600)

    ten million five hundred forty-five thousand six hundred fifty Turkish lira (10,545,650 TL)

    twenty million nine hundred thousand two hundred fifty-two dollars ($20,900,252)

    thirty (30) days, two (2) weeks, five and nine tenths percent (5.9%)

Changing the format of numbers is very important to properly localize the content in the target language. Please do not stick to what you are seeing in the source text, and focus & learn how numbers are properly written in the target language and/or according to client styleguides.

Source
Dragoman Style Guide for Figures