percent change
cambio porcentual
how much a value went up or down, as a percent of the original value: change ÷ original × 100.
Example
A price that rises from $50 to $60 changes by \tfrac{10}{50} = 20\%.
In Spanish
cambio porcentual — cuánto subió o bajó un valor, como porcentaje del valor original: cambio ÷ original × 100.
Un precio que sube de $50 a $60 cambia en \tfrac{10}{50} = 20\%.