Respuesta:
20%
Explicación paso a paso:
quantity percentage
20 100%
16 x
Then
[tex]\frac{20}{16}=\frac{100}{x}[/tex] ⇔ [tex]x=\frac{100*16}{20}[/tex] ⇔ x = 80%
If 16 represents the 80% of the original quantity, then the percent decrease is 100 -80 = 20%
