Divide By 1,770

Okay, do this in your head.

30,000 ÷ 1,770

Coming from Ecuador, where $1 is $1 because they use U.S. currency, it's something of a shock to deal with Colombian currency.

Todays's exchange rate is 1,770 Colombian pesos to the U.S. dollar.

To make things more confusing there are the many different denominations, as you see here.

Another problem is that what you get out of the ATM are often a lot of big bills that no one has change for.

Just something to be prepared for when you visit Colombia. Bring a calculator.