SERVICIOS PROFESIONALES CONTRATADOS PARA INVESTIGACIONES CIENTIFICAS

Each item compared against purchases of the same item over the last 36 months.

The open-data unit price does not carry the article's presentation (e.g. a 250 g container vs. 1 g), which can change how this comparison reads. When we can recover it, it appears next to the article; you can always check it on the official purchase page.