It's simple. Putting comma in number is same as western standard. Here's a tip. You can count the digit from the backwards. e.g.) 10,000,000,000,000,000 경/천조/,백조/십조/조/,천억/백억/십억/,억/천만/백만/,십만/만/천,/백/십/일 14,900 만/천,/백/십/일 10,000 만 4,000 사천 900 구백 --- 일만사천구백

It's more of a mathematical problem than a lingual one. Bear in mind that in western culture, the numbes system is "thousand based" while in Asia it's "ten thousand based" In other words, we have one more unit after thousand (천) which is called 만 western number system: base: one ten hundred thousand extended: million billion trillion Asian number system base: 일 (one) 십 (ten) 백 (hundred) 천 (thousand) 만 extended: 억 조 (trillion) 경 Let's take a very large number for example 2,492,478,623,911 2(two) trillion, 492(four hundred ninety two) billion, 478(four hundred seventy eight) million, 623(six hundred twenty three) thousand, 911(nine hundred and eleven) In order to read this number in Korean, it's much easier when you put the commas every fourth digit 2,4924,7862,3911 2(이)조 4924(사천구백이십사)억 7862(칠천팔백육십이)만 3911(삼천구백십일) Unfortunately, if will take quite a while until you get used to this difference. We used to put commas every fourth digit until late 80s, but we adopted the western standard since then. So you will have no problems writing the numbers with spaces or commas every third digit. (reading them is a different story) And note that we have only one unit for currency (won) and no cents like in Euro or Dollar. The last two digits must be an error therefore.

Hi, Milja. South Korea is same, but replace space with " , " for example 1000000 is 1,000,000 So 140,000 won is correct expression, not 1,400,00 won 'won' is a monetary unit like 'Euro' I hope I could help you :D

Thanks a lot, again!

I guess it's just a typo. They simply missed the final zero. KRW 1.4m, roughly 1.2K Euro makes sense for a rent of a few months.