Percentage solution
# Percentage solution

Percentage solution may refer to:

* Mass fraction (or "% w/w" or "wt.%"), for percent mass
* Volume fraction (or "% v/v" or "vol.%"), volume concentration, for percent volume
* "Mass/volume percentage" (or "% m/v") in biology, for mass per unit volume; incorrectly used to denote mass concentration (chemistry). See usage in biology
