Is there a difference between the above options? It looks like they can be used interchangeably, but I'm not sure. Here are the examples:
Vendemos productos cien por ciento naturales.Van a construir un hotel cien por cien ecológico.
Estoy seguro al ciento por ciento.
Thanks!
Hola Chris
They are interchangeable, but in Spain there is a clear preference for "cien por cien" whilst in Latin America it may be more common to use cien por ciento/ciento por ciento.
Saludos
Inma
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