„Circa“

Same as “about” and “approx.”; terms which when used in a letter of credit are construed to allow a difference not to exceed 10% more or 10% less than the monetary amount, or the quantity, or the unit price.

Source:

Maverick, C. O. (2008). “Understanding Trade Finance Terms: A Glossary for Importers, Exporters, Bankers and Students”. New York: McGraw Hill Education. pp. 120-125.